There may well be further reductions in the future if all CPUs that could do it before the reduction can still do it.
That's correct. If PG make it clear it is not allowed (not that they request people not to do it), it won't be permitted here.
I hope we get a few more versions of v7 before that happens.
The source linked in that rule is a post by Dr. Kasson, where he clearly states:
That's more than just using positive reinforcement; that's saying while it's not encouraged, it's not a rule being enforced. The minute that changes, so will our attitude here. Until then, I see no reason not to continue with it.