Hi,
I can understand your disappointment. But I think you are wrong !
For sure this is lot of manages that would like to destroy or destabilize best teams, by tanking weaker ones.
Can you please check a crucial thing ? Those 2 tanking teams that play the best way only versus your team... can you check if they played during week matches... or week-end matches ?
In fact, I think their teams were ready to fight Association matches and you had no chances to fight them also on week-end ! So they didn't want to manage multiple management each week-end each day