It's an easy houserule to do, but I'm looking forward for it being official - either via an official back of rulebook option, or a prelude card that basically says "draw 2 other preludes" - I guess it's a bit early for that, I'm hoping for one of those when the second sideboard is out, lacking such option then cuts too much content out without recourse imo.
Probably will try it some time before that, but with handpicked preludes (which I always use anyway per the offical MoM option), that should allow balancing out any undeisred outlier difficulty impacts.
We find the prelude that gives you an ally for some health makes the game significantly easier
Yeah, thats the kind of effect that alarmist terminology like "outrageously overpowered" is invented for.
It's also outrageously fun though, so it has its niche.