If the phal is in a more moss based medium then it probably needs repotting more often (like every year). You also want to be careful not to overwater in moss (actually in anything but especially in moss), see my previous tips on how to judge watering. I would still wait to re-pot until the flowers are done.
I have only been here less than a week, but I can agree with Rosie C that everyone here is extremely helpful and full of wonderful thoughts and ideas. Best of luck and welcome to the OB!