You're right you can't just compare things in a vacuum. When you compare mounted's ability to move the fastest in the game, hit the hardest in the game, have the most HP in the game, carry the most weight in the game while pveing, kill the most monsters solo in the game, have the highest solo survivability in the game, and require the least amount of armor slots in the game (only head torso legs boots more or less). You can OBJECTIVELY say it is too strong.
I also play mounted please tell me what you think my deficits are in understanding and or skill level that i'm assessing this completely wrong.
Also just because I can kill mounteds without much trouble, doesn't mean its balanced