Ok, those card mockups are tight! I'm still too new to higher level play to give much feedback on the details of your breakdown and ideas but I appreciate how the post goes beyond saying "Here's a thing I think and why".
You give the reader some background to understand why you are talking about this and you sneak in the special treat of the card mockups which are really well done; If someone showed me these randomly and said they were made by GU I wouldn't doubt it.
Personally I'm glad overall that the sleep changes as presented for the PTR didn't go through. There were a lot of good ideas in them but some of the things they would have effected could have been too big a change, or allowed unforeseen complications. Though on a slightly selfish note, I am a sad I won't be able to use an archer to kill off my own hydra heads the round they come out; that could have been a bit of fun chaos for a while!
RE: An Alternative to Sleep 2.0 -- How to counter BWD without Breaking The Game