TP does not guarantee anything in this game. Beating a 4600 tp team with a 4000 tp team is nothing new or out of the ordinary. TP is not a great indicator of a teams usefulness, synergy, or effectiveness against an opposition team. More important are the particular heroes you bring and how they work together, coupled with how they work against opposition heroes. Past a certain point, TP doesn’t mean as much as synergy, speed, and other factors. And it is just a game, not some grave human rights issue.
I would refer you to the below thread to read more about boards and supposed SG board manipulation. Bottom line, there is no factual evidence to support that claim.