It is unfair (to some) to lift someone at the beginning of the match because it decreases their chances of winning from the start.
Many people decide to pout about it, not realizing that nothing could be done about it and to just get over it.

Shovel is umm... a little , no a big kind of cheating . They're annoying and hard to avoid . might atract people to hate you more .

Well, why is it unfair to have an advantage at that start? Why wait till the end?

Because it makes you look like a jackass that just wants qi.

Eh? That doesn't make sense.

Just a cheap way to win.
You basically give them no chance and it takes the point out of the game.

But it's been said earlier that it can be countered. If a move only works against non-shovel-like moves, it isn't a very good move. You do have a chance.

Yes, but people don't want to have to use shovel counters every game because they dont know what their opponent is doing.

I can destroy shovelers just curl up and twist

Consider it like this.

It's like the grenade launcher in call of duty games.
The "1 button" move in Tekken / Street Fighter games.

Sure, they get you kills, but people hate you for it.