Sounds fair to me. I make 10K a year and last year I pledged $1000 to a single game. Also bought a 4K tv for $1100, Oculus Rift for $600, and PS4 Pro for $400. If you're a company and can't afford $5000 then you need to be in another line of work.
As someone who is currently still paying off outrageous pet bills for my slowly dying cat, have medical bills of my own, and have been working on my game for the last 3 1/2 years with only a slow drip of income, these kind of comments make me very sad.
I'm a struggling developer who has been through all sorts of hell to release a niche game that I think a lot of people will appreciate, but I have no clue on how well it will do. I am putting my heart and soul into developing my game and the reason I'm releasing on steam is because it has a low entry fee unlike almost all of the consoles where you have to pay thousands upon thousands into buying a dev kit.
I know it's easy for someone who has the money to release a game with a high entry fee, but like most indie success stories, some people creating some of the most creative and innovative games are struggling and a fee anymore than a few hundred would completely destroy years of planning.
Example: As a dev who is planning on using steam's workshop, now I have to think about "what if I can't pay to get on steam?" and start thinking about using some other form of content delivery, which sucks because my game was built around using that system. I doubt Scott Cawthon would have been a success without such an easy access to greenlight, since he originally went to kickstarter to fund Five Nights at Freddy's and it never took off.
Now, on content control and only allowing games that are functional while having a decent amount of content --that's something I could get behind. I'm in no way afraid of my game's quality; but the appeal and reading the market for how well it will sell...that's a very scary thing to me; even Team Meat who was supported by Microsoft during the release of Super Meat Boy had the same feeling of failure on appealing to a mass audience, so I believe it's a very common and rational fear.