Realistic models are going to be in the eye of the beholder. I'm just looking for common-sense and non-contradicting. As it stands the rules contradict themselves. In this case you are paying for something that you don't use - which makes no sense. I've never expressed any grief over life support charges. However I have continually pointed out why the rules as written have problems. Interpretation is one thing, error is another.
I don't know how many people are on staff at MGT, and frankly it doesn't really matter. Whether they are the size of WotC or a one-man shop, quality is important - especially when paying $30 - $50 USD for a book. I own a small business myself and my customers expect me to NOT have defects, and when I do, they expect them fixed (it's an identity & access management installation company). In my case, if my employees make mistakes your bank account could get hacked, or you could lose PII. I would hope clients would expect companies like mine to do a thorough job up-front. If I had a reputation for poor installation I would be out of business. Holding other companies to that standard is fair and reasonable in my view. I expect my mechanic, my doctor, my roofer, etc, to all strive to do the right job the first time.
My comment towards defenders was not directed at any one person. The question was directed more towards the generic "you" than anything else.
I've supported Traveller in it's many iterations since it was first published. While my gaming time has decreased, I still purchase products from MGT, GKG, and multiple smaller publishers. I want the industry to succeed, but I also still expect quality for my gaming dollars.