The only problem I have with this statement is that I believe that devs should really get better in creating code. Because without that after 3 months product development will slow down with each day.

His enthusiasm for changing the world is replaced with nit-picking the development process.

Worse of all, though, his concern that “We aren’t building the right thing” will be replaced with “We aren’t building the thing right.”
He’s learned to not give input on what is built, so he becomes obsessed with how it’s built.