I also fondly remember how wonderful the web development deployment workflow was in Coda. This was back before source control was ubiquitous and CI/CD was required for any real production environment. It was the cleanest way I'd seen to go from saving in your test editor and having a clear path to SFTP it to the server. I half recoil in horror and am still in awe of how considered their experience was.
Your memory may be playing tricks on you, it wasn't that long ago. Coda 1 had SVN support out of the box, and at the time SVN was already old and in decline, not to mention CVS and other lesser source control systems. By the time Coda 2 came out, git had won the DVCS battle, and was built into it.
Now, granted, back then I wasn't very keen on version control either but it's not because it wasn't there, it's because I was young and inexperienced, and didn't know any better. Plus, those days the only common use for source control was actually, well, source control, unlike today. It was something you had to discipline yourself to use for no immediate benefit.
I started my career at around that time in a company using Python for web application development and everything was in SVN but already in the progress of being moved to git and while there wasn't a CI/CD server, all deploys were done running a single cli command. On the other hand for years to come I have seen e.g. people and agencies doing websites in Wordpress making changes directly in production.
In that circles, which often included people with no heavy technical background like designers that learned some php/html/css Coda was quite a relevation I think.