Whenever you lose, you can see the breakdown of what your oppenent won, and most importantly his ecr. I'm only seeing players in the range of 30%. So either those are overly hype players that played all day, but most likely it's still both playing and not caring at all of the change at that league level.
I'm not too worried about dapp radar : every other game is plague with bots as well. They are just no addressing it's cause it's not profitable to do so.