That only matters if he had made a snap decision in the immediate aftermath of the NCAA canceling the tournament. Given time, cooler heads will prevail. The family already has an agent afterall (Tyus'), who will remind Tre and the family if needed that athletes have limited earning years, that the 25th pick or so is guaranteed about $3.5M and is very likely (through options) to make another $2M-$5M on top, that injuries can occur, that bad shooting seasons can occur (especially in a smaller NCAA sample), etc etc.
It doesn't break the laws of physics for Tre to return. That's about it.