It requires network manipulation. Well, more specifically, it requires certain routers that allow your to resrict your matching settings. The same teams match each other over and over again. Due to inherent sever discrepancies, third party software can be used to cut the connection at such a time that both teams wins. This results in game history similar to OP's. And I feel you. I thought I was decent at the game ya know? And then my very first game in Mythic was against ZkMushroom and his stacked team. I got straight up bullied. We almost won though. 67-75 clash. (We then proceeded to get destroyed during countdown on Eternity the very next game by the same guys. My team's worst game mode was countdown, and it's still mine.) I then proceeded to get bullied every time I stepped into Mythic. I 100% got farmed in some situations. But eventually with enough time in Mythic, I found a way I could contribute to the team and everyone else fell into place as well. We were playing too passive and decided we had spent too much time reacting to the other teams, rather than forcing them to react to us, and that worked. We all ended up getting NF. Sure we had to face one of the most infuriating and toxic communities in the game to get it, but the experience of going up to Shaxx and grabbing something we EARNED was incredible.

Huh?