Austrobogulator: Interesting. I was taken aback when you mentioned that it was here on Gog; I completely forgot that that game was a thing that exists. I know I saw it on the front page when it was released (I remember someone making one of those "oh, not another indie platformer" comments), but then everything about that game completely disappeared from my mind after that.
I wish I had a better explanation as to why I didn't buy it (or even wishlist it) other than "I'm just not interested...".
There's nothing unusual about that sentiment. I can explain it in two words - "average consumer".
Sadly, and despite the fictional dreamworld of artistic creators creating wonderful original games and generous patrons providing undying support that some people like to paint of the indie gaming sector, it all boils down to
one simple fact - a gamer buying a game from a developer is a business transaction. That means the gamer is looking to get the best deal they can find. In many cases, this means that the gamer is willing to wait for the game to go on sale or enter an indie bundle, which, let's be honest, is an inevitability by this point.
Most people who buy indie games are usually the types to buy lots of games, i.e. they have often substantial backlogs. This means that to buy a game new, it really has to have some kind of special resonance.
I do like to support developers that release DRM-free for instance, so I'm more likely to buy a game that I'm on the fence about if it's DRM-free than if it has DRM. I bought The Chaos Engine on day one off GOG.com, but I would have waited for a sale if it had been Steam-only. But support for a principle does not mean that I or many other gamers will automatically pony up money simply to support that principle. If we did, we'd be in debt pretty quickly.
If I didn't have a major backlog already and we were gagging for good DRM-free games (and platformers), I might have bought this. As it stands, there are plenty of DRM-free games for sale, not to mention plenty that look much more appealing upon sight.