Good point. It now feels like some games are made almost entirely for streamers- like Goat Simulator. A lot of other modern indie games seem to be trying too hard to be weird for the sake of getting attention (but, then again, pretty much the only streamer I watch is Vinny Vinesauce, so I do see my share of crap games).
Since I only tend to work on graphic novel games, it's much more of a niche market (in terms of writing them, it's sometimes a balancing act between having a coherent story and an open world), but there are still variety streamers out there willing to give them a go...