So you might make your connection, or you might not. What you should be asking yourself and checking is what would be PRs next flights to BKK if you were to mis-connect? And if you were to have to rely on those options would that be a schedule disaster for you or just an inconvenience? Don't just look at the PR schedule (although that will be their default option), if you were to give plausible excuses you could probably insist on a reroute onto another carrier although whether that would include LCCs I am not sure.

You are also dependent upon there being a seat available if you are a mis-connect but for regional flights like this there should be something. If it turned into an overnight stop I think local regs mean that PR would need to give you a hotel but having your own travel insurance coverage would be sensible.