It might be better now, but these posts from a few years ago painted a very different picture:

https://xeiaso.net/blog/v-vaporware-2019-06-23

https://xeiaso.net/blog/v-vvork-in-progress-2020-01-03

https://xeiaso.net/blog/vlang-update-2020-06-17

They were doing very level-headed reviews of the language at that time, found that the claims were mostly unsubstantiated, and then got blocked by the V team.

That did not inspire confidence at all, as you might imagine. I can completely understand OP when they are saying "V promised a lot of stuff as ready but has undelivered most of them and people lost trust." -- that was my view too.

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Again, it might be better now. The V team might have delivered in the meantime. But I can definitely see where OP is coming from.