I love that "the people" can immediately jump back through several generations of graphics or locked in gameplay tropes and still have fun. Jonnathanson's right, there's not a single audience out there, but it's good to see lots of people, whatever portion of the gaming population they are, getting some enjoyment from a lo fi experience and making a successful dev along the way.
Why is that exciting to me?
Because I lived through shooters killing adventure games.
And while I love a lot of shooters, and there's been an adventure game renaissance, it took a long time, and that was kind of a tragedy.
But this isn't just about adventure games, there just needs to be space for lots of genres to thrive. And tech limitations (currently on phones/tablets, then on everything) sometimes seem to help this along in a weird way, people pursuing lots of different ideas to package the most fun in a really constrained environment, without just jumping into a 3d environment because an engine is available for licensing.