Yeah this is very true. The main audience for amateur indie game development tends to just be other amateur indie game developers. Often this seems to be out of a sense of reciprocation - "I'll play your game if you play mine". The emergence of many big, well funded companies cashing in on the "casual" space has really stuck quite a lot of nails in the coffin of that kind of development as something that you could plausibly interest people with. You don't have the time and energy to develop a great game and also win in the attention economy.