You can't "nope" your way around Apple putting up a few walls around the MacOS garden just because they've left a door in one of them. If they go no further, then it's fine. But "not likely" is a bit too soon to say until they've gone a while without further limitations. That is, unless you consider something like the Mac equivalent of Project Sandcastle running on outdated hardware to be an acceptable situation, which appears to require a jailbreak of their stack anyway. There's simply nothing stopping Apple from going that route, and some years of incremental changes to MacOS that have inched it closer. Again, I'll believe they won't do that when they stop taking those incremental steps. Until then, "nope" really just means "not yet".