That's good. I am constantly looking at the changelogs for this game and going "how was this incredibly basic no-brainer feature not in the game years ago?"
Minecraft feels so, so, so incomplete for such a massively successful (sales-wise) game. Imagine what it could be if Mojang put in 1/10th the effort as some of the modders/plugin makers/a normal game company. At the rate they're going, this game will feel "complete" in about 16 years.
How are actual visible fish just now becoming a thing!? Adding passive entities like that must be so incredibly easy, wtf. Oh, look, seaweed, only took 8 years.
This game could have birds, vehicles, animated magic powers, a functioning ecosystem, anything. It's ripe for interesting content. It frustrates me.