True, but that's an argument to move on to other, less popular (for now) statically typed languages which are better than C and have REPLs.
We could debate whether it's wise to move on from C (I think in many situations it is), whether it's likely there will be more industry adoption of $MY_FAVORITE_LANGUAGE, but that's a different debate.
Also, if we keep favoring C (or Java, or whatever) because they are mainstream, then other languages will never become mainstream, and we will be stuck forever coding in horrible languages. Who wants that?
We could debate whether it's wise to move on from C (I think in many situations it is), whether it's likely there will be more industry adoption of $MY_FAVORITE_LANGUAGE, but that's a different debate.
Also, if we keep favoring C (or Java, or whatever) because they are mainstream, then other languages will never become mainstream, and we will be stuck forever coding in horrible languages. Who wants that?