I'd have to agree with the Chinese government over this warning.
If you take a look at the scam accusation board, you'll quickly find that there are a ton of scam ICOs with completely fabricated teams. In fact, I'd regard most ICOs to be shady or scams even if their teams are not necessarily fake, simply because their intentions are well documented to be not to actually innovate technology by any means, but to raise as much money for themselves as possible.
I do agree with the Chinese government when it comes to crackdown because there are so many scam ICOs out there. Scammers are taking advantage of the fact that there are no applicable regulations yet when it comes to implementing those ICOs so they are creating tokens out of thin air and hire some people who would create a website and a whitepaper for them. We are just lucky somehow that we have a community who would warn investors.
We can somehow reduce or totally eliminate the scammers if there are regulations because we will know the people behind those projects and they would be traceable. There are still legit ICOs out there who has brilliant ideas and would be a big help for the people to have ease of transactions.