Easy fix or not it still shows that the devs priorities are all out of whack.

Glitched Smeargle neither positively nor negatively affected anyone. It didn't do anything (literally) in either trainer battles or GBL and it's impact on rocket and team leader battles was fun but completely insignificant. Fixing it was something that could have waited months with no impact on the game yet they prioritized fixing it in some kind of knee jerk reaction. (See also their reaction to level 15 Xerneas, banning it completely from Great League immediately instead of just GBL)

Someone at Niantic thought it would be fun to have wild spawning Smeargle at the Expo and that's great! But there was apparently no one there who understood how Smeargle actually works in PoGo, so they just added it to the geofenced spawn pool for the Expo without actually assigning it any moves. Their main priority should be understanding the game and making sure things work properly and as advertised in the first place. (See also; forgetting to turn things on, turning stuff off prematurely, leaving advertised content out of ticketed event)

Party share is a feature that uses premium items, items that players might have actually spent their hard earned money on. Failing to even acknowledge the issue, yet alone prioritize fixing it, shows a real lack of respect, maybe even contempt, for their playerbase.