Why is everyone quitting the Zapdos raids?

I was somewhere rural for Articuno and only managed to just barely short man it using my kid's account. But now I'm in a city that easily fills lobbies and it took 20+ tries to fight what is an easier battle. Every time I join the lobby fills, timer starts and somebody quits or 2 people quit. Then the battle starts and 1 other person quits or everyone quits. Just to relobby and do it all over again. I'm not talking about quiting because it throws a bad move set and kills you, I'm talking quiting without throwing a single fast attack. Zapdos isn't that tough. The battles with 4 trainers we had 10 mons left alive at the end and even the one with just 3 of us we still all finished with living Pokemon. If you have 4 people in your lobby at least join the battle. If somebody brought a squirtle then sure quit. But why are you quitting with 3 Excadrills showing up to the fight?