Hmm, you're right. Must've been user error on that one ;)
I stand by the rest of my points, however.
Still mostly the same for MySQL 8?
MySQL 8.0 has Window Functions and CTEs. Of the entire list of things I mentioned, window functions and CTE's comprise 80% of the "weight" of my issues of that list.
In other words, while I (or another analyst) would likely still prefer Postgres over MySQL of any version, I wouldn't really have too much to complain about if I was using v8.
Division by zero errors and non-"magical" GROUP BY have been the default mode of operation for a _little_ longer, since the 5.7 series.