What i have been doing for years to fix the 'missing important tweets' problem: create a list with the most important people, and set that as your main timeline

What i have been doing for years to fix the 'missing important tweets' problem: create a list with the most important people, and set that as your main timeline. The official client doesn't have this feature, but third-party clients like Tweetbot and Echofon do. Works for me. I don't really understand why Twitter doesn't simply re-use an already working mechanism (lists) that they have neglected for quite a while. Maybe they could autofill a list with suggestions ("important people" or something) and present that as an alternative timeline.