>This is maybe more striking when comparing against C which was already very old and battle tested in 1989 when it was standardized. If you pick any of these languages you're accepting an unknowable amount of churn.
C has plenty of issues too, even though it is very old, battle tested and standardized.
(How about all the UB in C, for example?)
That is why people are looking for C alternatives in the first place.
>It better be worth it.
It better be worth it for C too (and for C3; pun unintended but evaluated).
Sure, as someone who got paid to write C for many years I can't disagree it has issues - after all I no longer write C. I chose to write Rust instead.
The notable commonality of these "C alternatives" is that they are still moving targets and yet that wasn't mentioned.