Terminal spike on phal

[stripey-novice]

Hoping for some advice!
I’ve got a phal which came from a nursery back in March. I think it has a terminal spike which the nursery have cut? (It arrived like this)
It had two flower spikes in bloom when it arrived, the first has dropped its flowers now and I’ve cut right down as the spike seemed to have dried out. The second spike has a few flowers still but they are starting to fade.
It doesn’t look like it’ll have new leaf growth. Seems to still have plenty of healthy roots. What should I do next?