He strongly desired to partake in the contest after all, that was how he felt. It compromised his ability to consider whether it was a good decision or not objectively and rationally. That was why he needed to put extra effort into his considerations.
The first thing he looked at was his long-term priorities of reaching the Senior Realm well before the ten-year period ended.
When that goal was considered, the Virodhabhasa Martial Contest was an absolute plus. The only thing he needed to be very careful of was the fact that he was dealing with religion that he unfortunately could be interpreted to have ties related to.
However, even that was fine as long as he did not give the Virodhabhasa Faith any reason to act against his interests. That meant that at the very least he should prevent them from getting to the core of his Martial Path, and prevent them from learning that he was a reincarnated being.
