To me this kind of assessment can read like a C dev saying something like “snprintf solves 98% of buffer overflows” or something. Yes, every React application can be performant if coded carefully by a small team of experts, and every C program can be secure if coded by a small team of experts, but often applications are built by a large team of median engineers, so tooling to make median code automatically 90th percentile could be well worth it.
I’m not saying Million is that tool, just that such dismissal of the problem addressed rings a little hollow.