Hasn't google lifted the crypto ban on their ads couple of years ago? and from what it looks like, this policy update seems to be about "Cryptocurrency Coin Trust".
Yeah, I noticed that as well and though I haven't read through the entire document I'm surprised nobody before you has pointed that out. Google sucks dicks, whether it comes to crypto, truth gatekeeping, or whatever else. Whatever this new updated policy is about, I'm sure it goes against their former motto of "don't be evil".
But I'm pretty sure whatever new policy they hand out will be bypassed by scammers lol. This is why I'm honestly not really sure how much crypto ads on google help since 90% of what I encounter are cookie cutter scams.
You'd be surprised (or perhaps not) how many people fall for the most obvious scams, and with bitcoin/crypto being so speculative and red-hot, I don't doubt there are enough suckers out there who'll fall for whatever scams make it through google's net that it'll make it worthwhile for the scammers to keep trying. They always do.