Best case, they lose control of the narrative as it's reported up internally, and someone higher up still has to approve it.
Worst case, some engineer who actually knows their shit very quickly outlines why this can never work for the given problem.
Once you're into the VP level, there's (usually) less technical knowledge, because folks at that level have full days crammed with higher-level decisions. So it's more plausible for sales to pitch {insert whatever buzzwordy, batshit crazy idea} and have it fly.