It is not good for Vanguard only, I mean why would they make such a move when they can make easy money from these BTC ETFs, or are there some other reasons for them to make this move, maybe they are not that powerful in compared to others like fidelity or BR, etc. If they were not forced by higher powers to make such a move then they did not make the right one.
As, I made reply to your previous post about how Grayscale moved 4000 BTC to coinbase, and how it gives the vibe that, grayscale already made enough profit from the ETF's that they now can sell their 4k BTC. While it is not what is looks like.
One thing I don't understand is that, the girl in the tweet that was mentioned in the article, said they only allow us to sell GBTC but not buy them which is manipulating the price of BTC, how it manipulates the price of BTC exactly. GBTC is not real BTC,