Interesting article, and I think we (I'm the author of the submission) may both be right to some degree. I wrote the article with an small/indie SaaS business in mind, which often targeting other small-medium businesses and developers where the goal is not necessarily to become market leader.

The intent was to say in a convoluted way: focus on those that value your business, and in particular focus on paying customers (the higher the better). In general it's better to have fewer customers that pay more and pamper them.

If you have millions of users the story is very different of course.