The same could have been said of Gopher. FTP is typically insecure and painful to use with it's varying port maps. Transferring files over HTTP or more modern protocols is the future.
My direct and blunt rebuttal is "I don't care". The future is worthless without the present, and more importantly, the past. The continued effective destruction of history that these big tech companies are doing with their actions is a disturbing trend.
I think it's pretty much a given since most clients change to PASV mode as a first step. And it's rare that people have a port open to them (behind all firewalls, etc)
I don't think Chrome ever supported Gopher, but if some other browser removed something that worked fine before I wouldn't like it either.
I am more worried about the very realistic that that Google would be dropping FTP from search results, seeing as how their users won't be able to open them in the Google browser.