The 3060 has been out for a few months now, and it has the limiter. Re: your edit about noticing, I strongly disagree. Tech reviewers would LOVE to run the “limiter cripples Blender/Tensorflow/whatever” story, but that hasn’t happened. And in this market users are generally taking what they can get, so I’ve seen lots of people who would normally run 70/80/90s running 60s instead.
The existing limiter doesn't work, though. It was narrowly focused and consequently easy for miners to work around. That's why they're making this new version. There is no precise test for whether a given workload is "mining", though, so we can expect more false positives to show up as Nvidia tries to close off the myriad ways to avoid detection and miners respond by making their computation look more like traditional gaming workloads.