25000 runs with key dungeons too high.

[Yup]

... it was irresponsible to even think the app could handle this event when it couldn't even handle less intense events.

I don't disagree there.

And I find it odd that they cancel the LOL grind event (or delay it) in favor of more intense grind event. But... well... I have no clue what's behind the curtain.

FYI if the compensation is 3-4k frags.. it's not going to allow some clans that can't hit the 25K to get Invader ed anyway.