Honestly, I'd like to give something like this a shot. The idea sounds pretty cool to me and could potential bring back some exciting true combos. However, I would prefer that characters can still recover fine considering some characters already have terrible recoveries. Don't get me wrong, I love Smash 4, I love how the ground game was sped up from Brawl and how a lot of characters seem viable to use this time around, but I just feel that the aerial game is still too floaty for my liking.
Am I asking for a Melee 2.0, no I'm not. I'm not asking for something like wavedashing to come back, I would just like to try out Smash 4 with heavier gravity. True combos are something that appeal to me, and I feel more gravity would make matchups seem more interesting. I've spent many hours playing Smash 4 and I love it, but I wouldn't mind adapting to a new playstyle due to a mechanic being altered as long as there's still a wide variety of viable characters. I felt Melee's problem was that the competitive scene was flooded with the same 4 characters because those 4 characters made the most of its heavier mechanics, while the rest were only viable if you spend MUCH more time playing that character instead of one of the few top tier characters. I feel Smash 4 has the widest range of viable characters and I love that. However, I would love to see those characters have more of a combo game in Smash while still being viable for competitive play, not just a select few.
I also feel the floatiness of the aerial game not only slows matches down, it makes recovering TOO easy for me. While I'm fine with the edge trumping mechanics, I feel ledges are a bit too.... magnetic. There were instances where my character really shouldn't have grabbed the ledge, but did anyways. It just felt too generous. It seems harder to kill in this game than it should.
As I said, I love Smash 4, I really do. I would just like to see a meta where majority of the cast is viable, more combos being accessable, and recovering is still good, but not overly generous. Just my two cents, but seems like a cool idea.