Daily boss challenge is so bad

Just for context, when I say breakthrough I mean getting the purple skill

The daily boss rewards are so important but leaderboard based yet it's not even a fair competition. It's just a contest of "let's see who can get the breakthrough skill on their main dps the most times in a row today".

I don't even know how far I can make it because I've never brokenthrough enough times to see my main DPS lose with breakthrough skill

Shouldn't all these challenges just start with 1 free character breakthrough like the event daily boss/guild boss?