I think mysql users are just there quietly making money while postgres users are bashing mysql ;)
I also think services like aurora are strong selling point for starting new tech businesses with mysql.
This seems to be the underlying factor.
Timing has more to do with adoption then the technical implementation. Being the first thing that is "good enough" for wide spread use is key. The last 20 years are riddled with examples such as Docker.
98% percent of people using w/ever are quietly making money. Then you have 1% that complain and 1% that praise. (Numbers are arbitrary.)
You could apply the same sentence to NodeJS, Rails, MongoDB, etc - hype is not necessarily a good thing, if you read the definition:
- Excessive publicity and the ensuing commotion;
- Exaggerated or extravagant claims made especially in advertising or promotional material;
- An advertising or promotional ploy;
This is technology, there are always going to be "my stack is better than yours" arguments and fanboys claiming their newest tech choice is simply amazing because it does $x, $y and $z.