@Tom Dunkins Wrong, that bug was affecting everyone: mobile, console, pc, every device. It was a bug of the server itself. Even mobile players could hit with a golden apple and in fact, getting it eaten automatically. It was the commonest bug on the server, since it could happen even without your will. So it wasn't givining a disadvantage to mobile players, on the contrary: it was literally helping them since they're a lot disadvantaged by theirselves. The reason why Mojang decided to let pocket edition players be able to place blocks in front of them, was exactly because they noticed it was a lot uncomfortable for them to make bridges like java players (and a lot slow). So, gap-hitting was for the majority of the Cubecraft Bedrock players like when you pvp and you quickly throw pots to heal yourself. Something like that, never seen on Minecraft before. But adding a feature like that would basically be like giving everyone NoSlowDown hacks. I agree that being slowed to heal yourself is not that cool, and this is people usually prefer to PvP Duel with pots instead of gapples.
Also, I answer to some of your phrases:
1) Is not something you "learn", it was something you could literally notice by yourself (I did it the 1st time I ever played and I was a total noob so). I'm sure tons of people realized that (expecially mobile players that can't switch the slots in the hotbar as fast as PC ones).
2) Exactly because we reached a point where neither the admins knew exactly how the bug occurred and started falsely banning players for "hacks", I tried to explain them about this bug.
3) Is not a Minecraft bug, it was something that only Cubecraft had and no other servers on Bedrock. This is why so many people got mad that they fixed it, because there was no other server with something like that.