But if you want to take some bets, no one's gonna stop you and you can just do it over and over again until the season comes back. It's still gonna take a lot of time and months until we see the regular ones. So out of boredom and as long as you're wanting to bet for some PBA games, you're good but you expect the unexpected with these games and as per results of it.
Same with regular season shit can still happen but in this kind of tour games maybe if you have some spare and you are okay taking the big risk, taking the underdog may give you some decent benefits. Though like what you have said out of boredom or if you feel lucky and you want to take that chance, betting on this kind of some sort of exhibition match might do for you.
Gambling always attaches with both luck and risk. It's up to you if you are willing to take your shots.