The benefits of not checking your sub page? You actually kind of answered that question yourself
I had the same problem. I kept refreshing, looking for new videos to keep me occupied while sitting in front of my PC and wasting time. When you check individual channels however, you don’t have that. Not a lot of channels update more than once a day, so if you just go directly to their channel refreshing the page over and over isn’t gonna do anything. After some time, when your brain realizes that, you’re gonna get rid of that habit.
The only negative thing I can think of, is that binge-watching potential hasn’t really decreased, as, when you’re looking at a channel page, you can see all of their videos. I have that well under control though, so it’s not a problem for me.
But before you do that, you should think about cutting down your subscriptions even more. The only reason this works so well for me is because I really only follow 3 channels and they have different upload schedules (one uploads daily, the other two update once a week or so) so I check one of the channels daily and the other two once a week. If you’re still following 16 channels though, checking their channel pages individually is probably too complicated to make it a habit. But you could still try it!