So, those celebs talking about crypto between sentences sometimes would create a lot of awareness and they could put this over the mainstream media, that is when the real price increases start.
The problem I see here is that these celebrities don't have a clue about what's going on here and for that reason back anything they deem interesting and rewarding enough, even when it's a clear cash grab.
We have seen quite a few celebrities enter the crypto sphere already, and they haven't contributed to anything but their own wallet. People need to stop following celebrities like blind sheeps. They're not here for you.
If celebrities really cared about the fundamentals of crypto, they would finance development, set up businesses utilizing crypto, etc. None of that is the case so it makes more sense to warn people against them.