They certainly seem to be resilient things, Phals! Mum has one where the crown rotten out... but it managed to hold on to the bottom 2 leaves and sprouted basal keikis, plus one from a spike
I have one that i didnt realise the core was packed with sphag and the roots all rotted out completely... I just left it exposed laid on top of some bark and mist it occasionally, and its starting to root and has developed a keiki on an old piece of spike
And ive even got one that i repotted quick when i realised it was in trouble... now its happy again the dormant tips of the flower spikes have re-awakened and are budding again!
Truely amazing plants