I have no explanation to the disconnected LP hose, it was completely my fault and I should have inspected the o-ring inside the hose as well not just the second stage. As for drysuit, I don't understand how you interpret my word of "being unable to kit up" - I am new to dryglove rings and have not mastered the trick of putting on these rings myself, but I don't see it a risk as if I cannot really find a way to put on the drygloves, I can always abort a dive. I also think if you use a back entry drysuit you will always need someone to help you "kit up", unless you're an octopus and could do the back zip yourself.
They could simply refuse me saying they could not accommodate me. I have clearly communicated with them my diving experience, my equipment condition and what I do and do not need, and that I'm happy to wait until next trip if this trip was too busy for instructors. It is their choice to say "yes you're absolutely welcome to come".
Ah, I now understand where it all came from. So even if I paid thounsands of hours in shallow pool, deep pool and open water, with my buddy constantly practicing and refining skills, with every dive ended up with our undersuits drenched in sweat, and eventually with us successfully completing a difficult diving course and being signed off with a certification saying we have done every skill with these equipment configuration - in the UK we are not allowed to discuss YouTube scuba diving videos even once in the public, or we're trolled as YouTube divers. I think I shall contact PADI, GUE, Mares and SDI to withdraw all my existing qualifications and start calling myself a YTB-certified diver.