My Merrells don't come with Vibram soles - they're fitted with Merrell Select-Grip ones instead. By which I take it that they select what surfaces they want to grip onto and screw you if you disagree with them. I had a really expensive pair of Asolo boots decades ago and they had the same problem.
Only I didn't find out how crap they were until I was halfway along the Lairig Ghru track in the Cairngorms, walked on a wet patch of rock and things escalated from there.
My Magnums have slip-resistant and oil-resistant soles on them, and they're not kidding - but they don't have Vibram branding on them either.
Sometimes running shoes designed for mountain running can be handy, it's what I've used up Snowdon in the winter sometimes when mountain boots were fine on the snow, but not so good on the ice
It's all personal preference though