I've killed a lot of orchids, for a newb... like 8 diff kinds... But Phal, I can do!
In my experience, leaves get soft right before they fall off or need to be removed. This don't mean the plant is sad, just that it's done with them leaves.
My phal is doing better than ever with robust stiff leaves and a spike better than when it was bought (prolly) and it's still tryin to drop pretty much all but two of its leaves...
..My spike has three branches and over 20 buds vs. 3 flowers total when it was at my grans...
I've had my phal for like 2 or 3 years.
If I was you, if the plant was still growin new stuff, I'd let it do what it knows it needs to. Mine don't lie to me
That one guy revived an orchid with no leaves... I think it was a phal too
I hope this is more to you than some noob blathering on to you..
I'm sure you'll have good luck
-Jake/Smid