bugs allways gonna exist: no gamer should play a game and expect bug free! more complicated game more bugs gonna be
hell there were bugs on super mario(that wall jump thingy wasnt intented as I know)
Every game has bugs, but modern standards are a travesty. This isn't something esoteric like pre-N64 Mario wall jumps which need you to be nearly frame-perfect and won't affect normal play. EU 4 bugs can ruin games if you're not familiar with them, things like 1500+ diplomatic power disappearing in an instant, fighting 4x the nations the pre-war screen indicates, being lied to about what you can core after the war (and why you can/can't take provinces), being lied to about what happens when you declare on coalitions, and on older patches you even had soft-lock permanent wars.
These are problems rookie users are likely to encounter in nearly every playthrough, with a significant impact on the outcome of the game. The fact that Pdox is willing to bend over backwards to remove stuff like "new world nations could develop for institutions" but not this stuff makes the OP's point much stronger because it signals very clearly that fixing these basic gameplay-altering bugs is set as a low priority intentionally. Pdox is willing to spend resources to stop stuff that < 1% of their playerbase uses to get an advantage (that is still weaker than other positions) rather than UI issues that plague nearly every game without exception...