I am actually amazed there is anyone that can claim in with a straight face that wordpress code is not bad. The problem is that instead of making it actually better core is busy mainly on beautifying it, when anyone even tries to do anything.

The frontend page pagination bug of 4.4 has much to do with bad code which would have been rejected or restructured years ago.

So yes, users that don't care about bugs and don't care about features taking twice the time and the money to be developed don't care about the quality of core code, but I have never heard of a user that don't care about money and bugs.

No one develops sites with wordpress because of the quality of the code, people do it because it is still the fastest route to a working site, but that doesn't mean that people don't care.