While he is certainly an excellent developer with great productivity to boot, LOC is an obtuse metric. For example there is a package-lock.json commit which is almost 20K lines. Otherwise I totally agree.
Agree, if anything it should be the reverse, less LOC produced means more efficient developer. But that's also a shit metric, as then people start cramming in as much complexity in every line as possible.
Best would be if we could actually measure "complexity" in a objective manner.
