Does Metagross really outclass scizor as a steel type?

Flash Cannon and Psychic are both extremely mediocre and very similar to each other. Not terrible, that word is reserved for moves like Psybeam that are actually bad.

Metagross does outclass Scizor easily. The stats are just enormously better and Iron Head isn't much better than Flash Cannon either. Heavy Slam would be an actually good move but Metagross can't learn that move in the main games despite being one of the heaviest pokemon.

EDIT: To further my argument:
Metagross hp 160 atk 257 def 247 tankiness 199
Scizor hp 140 atk 236 def 191 tankiness 164
Metagross has 9% more base attack and 21% more base tankiness. Without taking stats into account, BP/IH has 16,89 cycle DPS, BP/FC has 16,75. Scizor's moveset is 0,8% better in just pure damage output, minuscule difference.

Flash Cannon is bad, Psychic is terrible. However, STAB prevents them from being completely useless. Bullet Punch is fairly good, but far from perfect. Zen Headbutt is OK, but it is clearly outclassed by Extrasensory. Metagross has bad moves, so it won't be as useful. The only thing Metagross isn't outclassed is a Muk (obviously not Dark Pulse) killer.