Not much to see here. Just backend developers hating on JavaScript and looking for workarounds to avoid it that will come back and bite in the neck the poor souls that will have to pick up the project after the current Go devs leave.
I've been writing client-side JS/TS for many years and still enjoy it, but there are scenarios—quite a few in my opinion—where targeting WASM is a better technical and business choice. It's just a "right tool for the job" kind of thing.