Local root vulnerability in snap-confine

What? It would cause new failures for older code, i.e. it would introduce countless DoS vectors, only a microscopic proportion of which correspond to actual attacks, but all of which would annoy users (where "annoy users" spans the entire spectrum from "slightly annoying" through "bug we can't track down that goes away on restarting" through to "oops now the system is unbootable because of an unexpected and undiagnosed EREFRESH while installing something boot-critical").

Hell no.