Hi! Thank you for your kind comment, it's very much appreciated.
Build 0.4 gave Luke some of the spotlight, so in 0.5 the situation is reversed. Kota gets up to some shenanigans of his own that are a bit central to the plot.
As for P, as the advances his personal reason for looking for the hotel will become clearer. As of Build 0.4 we didn't get the time to let him, pardon the pun, spread his wings. His and Storm's search will, I hope, reveal the interesting things about the two of them and how they both tie back to the main story in multiple levels.
Although I won't go into specifics as to not spoil things, one of their segments has a lot of possible variation depending on your choices — it's a bit like a detective minigame. A lot of the points you raised are touched on there (like what's up with there being a second minotaur), but what you'll see will depend on how you approach it.
About the purple prose: yes, I know it's an issue with my writing. It's one of my flaws, if I don't keep myself in check I tend to go and on. The rounds of editing we do before releasing the content helps a lot but some still slips through the cracks, hopefully I'll have the time (after Build 0.5!) to make a thorough round of editing specifically to reduce it.