Every pokemon doesn't flee throughout the event (Haven't saw a poke flee in 2 days) but they just kept attacking balls. I just saw a cacnea this morning that hit like 7 great balls even if i threw it when it attacked and even 40 cps are headbutting the balls like crazy. They only seem to headbutt or jump the balls when you throw the ball and basically attack or jump as soon as the ball goes into contact with them. Almost all of the pokemon are taking like 2 or 3 balls to catch.
If you want to make money from balls this is not the way because if you catch a pokemon with a red ball it's going to flee 99.9% of the time and it's a appalling and steel hard fact. People are talking about the fact about garbage new pokes but this is the real garbage.
I'll actually quit this garbage when the game begins to have me waste 100 balls on an attacking pidgey (Which never happened yet but trust me, it will happen soon).
The worst ones are the hovering ones like Shuppet and Carvanha and boy i hate catching them, they give you no chance to curveball them by sticking onto the right side and i can't even throw the pokemon with a curveball. If it goes to the left ok but if it goes to the right...Have fun sticking around for 10 mins plus. AR doesn't even work against them now. Of course there are ones which you can still hit normally when they are hovering like Beldum or Castform but Carvanha, Shuppet, Duskull, Wailmer and others like that are literal hell.
Also there's an equally annoying problem which i noticed after this update. If you curveball a pokemon trying to score a great, the ball will simply land in front of the pokemon and miss. What a joke steer clear from this disgusting horseshit!