Well, although the mooblooms may have some sort of functionality, they can only be found in flower forests, which means if you aren't lucky and don't have the biome nearby it'll take a bit of searching to find the mob, and they probably won't be as useful as you'd think they would be. About the "There's already enough illagers" In my opinion, they have more content as opposed to the other 2 mobs. They have 3 types of illagers, 4 including the ravager, and they even have a raid event, plus 2 dedicated structures and an OP item that you can earn from them, so although it would be nice to have a new illager that lives in the mountains, 1. mountains aren't too common, so you might have a bit of trouble finding them 2. the feedback on them could turn out like the feedback on the phantoms, as even though the phantom mob looked the best, a lot of people ended up hating the mob. The reason why I like the glow squid the most is because there's only 1 type of squid, whereas the cow has 2 types, and the illagers have 4 types. Along with this, they would probably make it to where you can add a glowing effect onto any type of armor, or they might even make a new glowing potion that applies the glowing effect to other players, which could be useful for pvp. So, not like I don't like the other 2 mobs, it's just that in my opinion, the glow squid could be something really cool to add into the oceans to maybe send a message that the oceans, although beautiful, could be the end of you when diving underwater, and they would add more difficulty to the game.
