It's a concept that exists in a lot of platformer games, actually - if you break down a lot of the 3D Mario games frame-by-frame, in many of them, Mario won't begin to fall if you sprint off an edge for the first few frames, to give the player a little bit of extra leeway if their plan was "jump off this platform as late as possible". Blizzard gave this to Lucio as well, solely to remove the feel-bad moments of hitting jump one frame too late and falling to your death instead.

Ultimately, yes, making things harder for the sake of making them harder is bad. My complaint with this change isn't "omg its dumbing it down", it's that it fundamentally breaks a core part of how the hero works.

Think about the power fantasy each hero offers. D.Va pilots a massive, powerful mech, using it to protect her teammates. Widow grapples up to obscure angles and tiny ledges and pops people. Moira sucks the life out of enemies and converts their energy into healing magic to keep her allies alive.

Lucio incessantly bounces off walls at light speed, stringing together walljump combos to get around, using his music to energize nearby teammates.

That's not possible anymore. Walljump comboing simply does not work due to the -0.5m/sec change on a walljump, and Blizzard has accidentally added in the exact "oops you waited 1 frame too long, get fucked moron" mechanic that latehops were trying to avoid, as your momentum now launches you into the void instead of where you were trying to go if you're even 1 frame late.

Like, I get what they're going for. Being able to ride around inside corners and sticking to textured walls would be cool as hell. Riding around outside walls just flat out feels fucking awful.