A question about game changing ultimates.

16 out of 25 ults are capable of 2-6 multikills, and turn a team fight in their favor. They are considered fine and no one bat's an eye, let alone complain.

3 ults do the opposite. They prevent/fix the multikill and turn the team fight in their favor. They are considered OP, the evil on earth that needs to be cleansed by the holy nerf hammer and are usually reason for massive rage on reddit and on the forums.

Why is that so? What do you think makes support ults so inherently wrong?

The "no skill" is not a valid answer. One of those is literally an aimbot.