Your white Phal is very pretty.
It is a matter of preference Fiat. I prefer to repot even in bloom, so I can check very well the condition of the roots. I also try not to use full ceramic containers with no side holes. It is good your plant has an inner pot, as long as you allow the water to drain well after watering before putting back in the ceramic pot, it can work.
But knowing Phal roots, they really like lots of air around the root zone, so containers with side holes are preferable. If you can see the bark is still chunky enough and not too broken down, you can keep your Phal as is. Your photo does not really show how the bark media looks like.