Hey-hey! Thanks both for reading and for all the feedback! Always nice to get a little bit of criticism to the writing, and I'll try to respond to each point in turn!

I chose the Chapel for a few reasons. When I first decided I wanted to write a fed, one of the key things which was important to me was to decide a sort of theme or personality to the place. I wasn't after a 'gimmick' per se (Though one could argue I wound up with one), but I didn't want it to just be a generic 'here are people in another arena fighting for more titles'. I wanted the federation to have a personality of it's own which could help give characters something to feed off, and help fuel some more unique feuds in the process.
I was watching a lot of Lucha Underground at the time, and whilst I didn't want to go as far into the supernatural as they do, I did enjoy the air of mysticism to matters. At first there was the idea of combat for the sake of fueling some dark war god or whatever, but decided that was a little TOO much, and reeled it back. I started instead rolling with the idea of it being run by someone who almost... worships combat in a way. Someone who found it beautiful, and followed it to almost a religous degree.
I also wanted a name of sorts to go along with. I wanted a play off the idea of Resting Spirits becoming Wrestling Spirits, and the name was chanelled from that. At first it was simply a name to sorta symbolise the feelings but well... Part of my job is adjusting halls in a conference centre. And one of our rooms is a Chapel, funnily enough. One time, uniquely, I had to arrange it so all the chairs faced a square in the centre - at which point I realised; 'Huh. An ex-chapel would be a cool place to actually base the Chapel of Wrestling Spirits.' Sorta gives a unique backdrop, but one which easily could be shaped/adapted for standard wrestling.
So yeah, all in all, it was something of a process to get there. In the end it was chosen to be unique, whilst at the same time not obstructive of the core wrestling product that it's meant to be.

As for the brevity, I will state that this is the shortest part. Like, I think the majority of parts are like... over three or four times the size of this - if not bigger. Fact of the matter is, this was unfortunately written before I even had a cast/any entrants. I wanted this just to establish to people what they'd be signing up for, and give an example of my writing style. More a teaser post than anything else.
I do admit I could perhaps have added a bit more in the way of descriptive writing for the setting. I was admittedly a little worried when describing the Chapel though, that I may over-describe things - I've recieved criticism in the past for going into detail that some would regard as unneccesary, and detracting from the point of my own writing by going too much into the trimmings. At the moment, my aim here is to sorta highlight the generalised appearance of the area, and then sprinkle more descriptive details throughout other bits and pieces, filling in as we go so as not to overwhelm the readers with information. Still, you are right in that perhaps I could have done a bit more to help people visualise the setting to begin with.

As for the outsider opinions, it is something I'd like to explore, but maybe not so much in the episodes themselves - unless I can tie them into ongoing feuds or plotlines. The episodes themselves will mostly focus on what would be broadcast by the show itself, so isn't too likely to go into the world outside unless it can tie directly into the current happenings.
Still, I may in future write more external pieces. Things like interviews with the Chapel staff/competitors, or magazine articles detailing the changes. I am interested in the world outside, but just want to be careful that the focus doesn't shift too far from where it's intended.