I can answer this - The reason is pretty simple actually, and the other reply is correct: Right now, the way it works is that the original game executable is modified to run the code from OpenLoco - Replacing Main(). OpenLoco runs anything that's been reimplemented, but anything that isn't calls back to the original binary, which means to avoid unneccessary complexity, it should all be the same - 32 bits.
OpenRCT2, from mostly the same developers, (Disclosure, I am associated with them), did the same thing until the game was fully reimplemented, and then it very quickly gained 64 bit support.
The post suggests that respected co-workers would bother to give negative feedback about you simply because of your feedback.
It is an absurd generalization. People have more important things to do in their lives than resent a quitting co-worker (which is pretty standard in the industry).