What would said passenger prefer:
(a) Flight to continue with failed engine
(b) Boat trip instead
(c) Perfect world with no mechanical failures
Option (c) doesn't exist... Mechanical things are subject to failure. If SLF don't want to be exposed to said risks the solution is simple - DON'T FLY...
Be grateful your dirt cheap airfare still pays for competent crew who try to do the right thing to preserve the safety of their backsides (and in turn the pax backsides) at all costs.
Oh, and one more thing: I'm sick of hearing "OMG"....