I see you started working on this in 2006 and the last edit is from this year. At the bottom, you mention this is a work in progress. I think this is a brilliant bit of satire. Like all humor, it is rooted in reality. The tone of the piece and the word choices are brilliant in showing Big Adventure's origins and how XLQ became a thing. Phrases like "business growth enormously increased" not only fit the context, but also just feel right.
Considering the pandemic has sent people of all sizes into the outdoors and onto hiking trails, I wonder if XLQ would have a chance at being a real-life magazine. People of all sizes are claiming the outdoors for their own leisure pursuits and they are demanding clothes for it. Why not a magazine?

Since you're working on this, take a peek at my suggestions below.

The first paragraph is written in a tense that feels strange because a lot of the statements are describing achievements that started in the past. "Had" feels more natural than "has" for that part of the text. Have a look-see and decide if it could be true. You obviously have a very specific tone in mind and the tense you use is part of it.

Bernie has [had] achieved much over the last ten years.
Big Adventure may have started with clothes, but it has [either just take out has or make it had] turned into more than just a clothing chain
it has [had] become a positive force in the struggle for 'fat acceptance' in America.

Lot's of Cindys here:
avid and fulfilling support of his wife, Cindy. Cindy's [Her] support

Are you sure you meant to use "dissembled" here: Roger dissembled at first
dissembled = conceal one's true motives, feelings, or beliefs (does not seem to be the correct meaning?)

Great satirical piece. I hope you keep working on it. Write and hike on.