I'm levelling a monk now, so I'm not able to test this. Is it really a teeny bit of strength?
I have a 50 BLM and the soul gives me 58 int. That's HUGE. Cooldowns usually feel better than they are. If the monk strength is close to the blm's int, there would be little comparison.
Though the argument is pointless since as you mentioned, they job gear really limits end game content either way.