That's not what the recommendations are for. There's a separate page that list all posts by your subscriptions in chronological order, you can find it in the sidebar, IMO it's the only way to use YouTube.
You can easily filter it, by unsubscribing to content you don't actually want. If you watch so little content of a channel that it annoys you to see it on the subscriptions pages, then you shouldn't be subscribed to them.
I can't see how adding a filter system would be less annoying at that point, you would take more time by selecting some filter than just ignoring that specific content. Out of my 352 subscriptions, I got 22 videos yesterday, quite fast to skip them.