[SmG Htgan]

Well last I checked, hypixel had 40k players online at the same time, up from a couple of years ago.
So it's harder to survive as a small server if you are trying to make a profit. Players are gravitating towards large and stable servers knowing they can donate for a rank that won't disappear along with the server a couple of weeks/months later. Also large servers have the revenue to keep making new game modes and adding cool plugins.

So Minecraft probably won't go away anytime soon. But I know better games will come.