ITT : we act pretentious about pretending to be a wizard
i will share a terrible dark secret with you: no one thinks any magic is special. even if it is canonically the rarest magic in the world that only you and the guy you made up to teach it to you can use it. something becomes special when it is written to be special, to exact meaningful consequences on characters and the world that they live in, which most magic is not. most magic is written to be generic powerups with circumstantial weaknesses like maybe one step above "my character Plimbert the Deathstalker has orc strength and super agility and immunity to conventional weapons, but he can be instantly felled by a rare ST material on Tuesdays"
even genuinely well written and interesting concepts have an insurmountable hurdle in having to be actually executed through the medium of minecraft text with everyone having a different level of lore knowledge and reading comprehension. what's special is the stories you create with your friends, and magic is just a device you can use in those stories
also this whole "tear in the veil" concept would be cool if it actually meant anything, like the ST were willing to actually expand on or roleplay it at all. so far we have had a voidal tear event that turned part of the map blue for a month and didn't go anywhere, a few voidal horror CAs, and like 100,000 "voidal magic is eevil!!!" forum posts.
besides having negative effects on my character personally (which i still have to interpret the lore creatively to do) if i play void magic as dangerous and unpredictable as you say it is --> instant blacklist for stepping out of one 1,000,000 redlines prewritten into every piece so that it isn't more Powerful than the flavor of the month deity or misc. magic/feat/creature. despite all of this I genuinely enjoy void magic RP because it gives me just a little more poetic license to write a character than anything else, and because I didn't need to join someone's obnoxious discord to obtain it
there is obvious utility from a game design perspective in having magic that just lets you throw fireballs or majjyk missiles -- that's why it's one of three classes in nearly every roleplaying game system does exactly this. sometimes people gotta throw fireballs to kill giant spiders, and I genuinely don't see what's wrong with that.
the seething disdain you people have for generic fantasy tropes is what prevents people from actually doing interesting high fantasy rp, because tropes are a part of the genre, and playing with them/building on them is how you make genre fiction
maybe the void realm is a mirror of our realm. or a memory of our realm is impressed on it every time a void mage breaks the veil to steal its power. or maybe the void is what's behind the fourth wall and the literal keyboards and screens and maybe some grass. its not the most outlandish concept ever to have the Void (or the Interstice, or the Intergument, or the Borderworld, Xen, or something else this stuff is all made up) be an explorable place in game or at least a tangible place/thing that could be fleshed out in rp. that would give people some cool stuff to do