It unfortunately has other implications, ts-loader (used by webpack) for example is not compatible with the new Go crap so you need to do weird pinning down to v6 to get your builds working again [1].
As near as I can see, it isn't anything fundamental to the rewrite, it's just a transitional phase, though.
And when you can't manage to coordinate with an ecosystem dependency as large as webpack before the migration to make sure nothing breaks... my suspicion is utter incompetence and gross misuse of AI.