I didn't read a complaint against java per-se, but rather an observation that if your most pressing business concern is to rewrite (presumed) working code in one language into java purely for taste reasons, then maybe it wasn't a place he wanted to work.

asuffield didn't malign Java: he seemed to imply judgment about the fact that the company seemed to be converting working code from LANGUAGE1 to LANGUAGE2 for the purposes of being a LANGUAGE2 company.

In particular about this being the only major project they were working on. They didn't just rewrite, they stopped doing everything else in order to prioritise it. The mind boggles.