Far from everybody is using it for massive code generation - code size is still very much a liability. I currently use it (ds4-flash, local, code isn't open to non-local) to modify and trim a certain internal project for a different use case. Tons of review passes, fuzz test generation and running, "give me your thoughts on this", etc, etc - basically iterating over and over and over. Funnily enough, my intrinsic knowledge of the codebase improves massively like this. It is involved, but the acceleration is real - and I don't have to worry about wrist nerves as much.

The only people I know that have LoC/token use/etc metrics imposed on them work for big corps where such things are (or used to be) en vogue.