I don't get why people keep using the default recommendations? The whole point of twitter was that you manually pick who to follow and see just that. And you still can do that, use the Following tab and it'll work just the same as the day 1. For extra points you can create lists so that you can group people and fine-tune your timeline...
Indeed if you're active, and like stuff, the algo improves and shows you lots of relevant content. But mostly from the prominent accounts and only viral ones. So the point of the post stands.