Why is this a thing

I outplay a Fiora all lane phase and she 1v1 me at like 25 minutes where I was super fed and she is like 3/10 and she kills me. Her heals are so insane that she still sustaining my dmg through my fucking Executioner. My team had such a huge lead and we lose simply bcs the fiora doesn't fall off and the chogath insta deletes any squishy he ults.

Straight cancer. I outplay with a fuckign Wukong which took so much more care and tactic, and they win simply because the champion is superior. FOH with this shit...........