True.

But I have to say that I got quite used to collaborative editing, not something I'd like to give up.

People can get used to buttons moving to other places (imo), but collecting and integrating edits from multiple people via email is not something I look back at fondly.

Yeah, then again most people haven't experienced this and are happy to just enable "track changes" in Word and send the document back and forth, maybe if you're lucky, it's hosted on SharePoint or OneDrive.