Quote from Hammer »Mana Drain is likely the single most broken instant ever to see print. No, Force of will is not close. The card was a mistake and should have never seen print. Also an utter failure to the colour pie.
You have no clue what you're talking about, honestly. The color pie didn't exist during the printing of Alliances as it does today, it was perfectly in color (blue got everything, remember). Also, with mana burn, generating a bunch of extra mana that control decks likely couldn't spend was a serious drawback. Doing away with mana burn made it more powerful, but without the full blue toolbox that eternal formats enjoy, there's a real cap on just how powerful it can be in Modern.
You can't evaluate cards in a vacuum, you have to evaluate them based on how they'd slot into existing decks and what they'd enable. Force and Daze would be quickly banned, just like everything else that makes Storm too strong. Plus, they'd allow UR Phoenix to go all in while still having protection; the strongest deck in Modern does not need to get better.