“In lieu of” means “INSTEAD of,” not “in light of” or “because of.” Just sayin’.
Half the people I see using the term to try to sound smarter than they really are don’t seem to have any idea what it means. So it kinda… doesn’t make them sound very bright at all.
And since I usually tend to assume people know what the words they’re using mean until proven otherwise (is that maybe part of my autism?), there’s always that moment of confusion–that moment of, “Wait, how do they think they can replace this thing with this action they’re talking about? That doesn’t make sense,” before I realize that it’s simply a case of them trying to sound smart by using terms they don’t know the meaning of.