I like the vids / streams, but after 10mins still not really in it.. Not everyone has too much time.. 😅 Maybe a bit more focus / schedule. Would be nice.
perhaps I don't see the real goal, but this @let feature looks like just we mess up ts with html, there is no real need of this feature. other issue is the unit testing after many projects...I can say, noone cares about html test coverage. other issue mess that you have fields in multiple places...as we can see, this is buggy as well. other issue is that the typing...
I also have an impression that this is mixing of concerns between ts and html. Also from an example it looks like you can achieve similar results with {{}} syntax. It is hard to imagine use case for it (now).
The related issue #15280 is about 7 years old and has the fifth most "👍" of all closed issues 😂 While I agree with you to some degree, definitely a lot of people wanted this, and you can check out that discussion thread if interested. Maybe something will click, who knows?😄