Between this and node adding the --experimental-strip-types option which would otherwise allow people to skip compilation, I'm not sure I would choose Typia right now. I'm sure it's a great library, but these don't bode well for its future.
I think it's fair to be skeptical, but I'm aligned with the overall approach the author took and I think the approach itself is what is interesting (pure TS + AOT).
Author + contributors and ts-patch team[0] seem up for a rewrite in Go based on that thread! Might be bumpy, but a pure TS approach is really appealing. I'm rooting for them :)