While I agree with the sentiment of the article it’s very social Selling circa 2016.
The article is 100% in saying you need a great Linkedin profile. But the suggestions put forward are great examples of bad practice not best practice.
The reason for it is simple, your title is your “why” and not your “what”. It is supposed to create intrigue and your prospect will read further.
If, as a prospect, they have 20 minutes to evaluate various competitors, then you want the person to spend 15 minutes on your profile and less time on the competitors.
These suggestions will make the reader move on to the competition. That isn't what you want. The world has moved on since 2016, we are all older, wiser and the world of the internet, social and mobile has moved on.
Every career counseling client I worked with seems to have made the same mistake when it comes to the crucial headline section of LinkedIn. If you search your friends and connections, you’ll notice that almost all baby boomers make this same error on LinkedIn. They do not understand the importance of keywords in their headline. Most tell me they didn’t realize they could change the headline or that they should change it. Big mistake. If you look under your name, LinkedIn by default lists your current job title and that is your headline. Unless you are Oprah and the world knows who you are without any words under your name, your job title isn’t the only thing you want in your headline. You may not even want that title listed at all if it doesn’t have the right keywords