Non-nut flushes still die
In limit, people call more. Second-nut flushes get action from nut flushes across multiple bets. Treat non-nut flushes as bluff-catchers, not raising hands for caps multiway.
Nut potential still rules Omaha. In limit, the nut advantage compounds over many small bets — chasing second-nut hell is death by a thousand blinds.