This is actually something that comes up fairly often. In general I like to try to keep 'tech' in the game if we can, but sometimes its some weird bug that can cause a lot of other problems, is super unreliable, or is just straight up overpowered.
For example, the Genji ledge dashing bug was cool but both extremely overpowered and also really inconsistent/buggy feeling (which makes sense I guess, as it was a bug). That one we opted to just remove instead of trying to work out way to implement it as a feature, mostly because Genji already has really strong mobility and we didnt want to add more onto that.
Mercy's glide jump though was something that wasn't really intended but we ended up having to fix for unrelated reasons. When we did that, we went ahead and implemented it as a real feature of the hero so it works a lot more consistently now etc. She also has the big vert super jump which is a lot more tricky to pull off but we haven't really adjusted or changed an...
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