Not at all - I have plenty of firearms that work great for defense and competition. However, I've also gotten rid of a bunch or relegated them to "fun use only" because they didn't operate reliably enough for defense or competition use. If you want to know my thoughts about it, you can read the other thread.
But it's not just me that notices things wrong with CZs -- search for "cz pistol short throat" and you'll find plenty of other people who have noticed that one (which causes some well known commercial defense ammunition to not chamber properly).
-z