The great thing about the long tail for new sites that have no backlinks and no authority, is that it is possible to rank for these terms, assuming great on-page SEO, quality content etc.. So therefore focusing on the long tail is a strategy that is often recommended and in fact Rand himself (and indeed others of good repute) have cited 4+ words and lower LMS to avoid the med-high volume kws due to their kw difficulty. Have I completely missed the point in your guide or do you indeed have a slightly different view on the long tail?
Use LSI keywords, and answer additional questions that users may think of after viewing the content. Simply offering only the content that a user searches for is no longer enough. Pages need to supply additional information a user may be seeking. Providing additional information will help retain the user, and tell search engines that the page’s content is not only answering the search query but providing additional value that other pieces of content may not be.

Description meta tags are important because Google might use them as snippets for your pages. Note that we say "might" because Google may choose to use a relevant section of your page's visible text if it does a good job of matching up with a user's query. Adding description meta tags to each of your pages is always a good practice in case Google cannot find a good selection of text to use in the snippet. The Webmaster Central Blog has informative posts on improving snippets with better description meta tags18 and better snippets for your users19. We also have a handy Help Center article on how to create good titles and snippets20.
Another example when the “nofollow" attribute can come handy are widget links. If you are using a third party's widget to enrich the experience of your site and engage users, check if it contains any links that you did not intend to place on your site along with the widget. Some widgets may add links to your site which are not your editorial choice and contain anchor text that you as a webmaster may not control. If removing such unwanted links from the widget is not possible, you can always disable them with “nofollow" attribute. If you create a widget for functionality or content that you provide, make sure to include the nofollow on links in the default code snippet.
Local results favor the most relevant results for each search, and businesses with complete and accurate information are easier to match with the right searches. Make sure that you’ve entered all of your business information in Google My Business, so customers know more about what you do, where you are, and when they can visit you. Provide information like (but not limited to) your physical address, phone number, category, and attributes. Make sure to keep this information updated as your business changes. Learn how to edit your business information

As keywords are essentially the backbone of on-page SEO, you need to pay a lot of attention to them. There is no reason not to include them in your URLs.  The inclusion has its benefits. When you assimilate the targeted keyword into the URL, you are ensuring that Google’s has another reason and way to consider your article as more relevant for a particular phrase.
Because the act of linking to a site does not imply ownership or endorsement, you do not need to ask permission to link to a site that is publicly accessible. For example, if you found a site's URL through a search engine, then linking to it shouldn't have legal ramifications. There have been one or two cases in the U.S. that implied that the act of linking without permission is legally actionable, but these have been overturned every time.

Embedded content linking. This is most often done with either iframes or framesets — and most companies do not allow their content to be framed in such a way that it looks like someone else owns the content. If you're going to do that, you should be very aware that this annoys people. Furthermore, if you're not willing to remove the content in an iframe or the frameset around the linked page, you may be risking a lawsuit.

Keep in mind that the number of average monthly searches for each suggested keyword is an estimate. However, it does represent the popularity of that keyword or search term. This makes a difference when doing your keyword research, as it gives you insight into what people in your market are searching for. Understanding what they want allows you to better position your business to provide them with relevant content and information.