Depends.
Are we talking about space magic as it being intended as space magic, or are we talking about bad writing shoehorning effects/changes/whatever when the own game's lore doesn't suffice to explain it?
Now, disregarding ME:A, because we simply don't know anything about its lore and how the whole thing took off to Andromeda which means we can't go cry space magic as we don't exactly know what limitations are imposed in that game's lore (sure, it's based on ME1-3, but we don't know what timeframe we're looking at and which technological differences may be present).
If a game wants to have space magic for space magic's sake (after all, proper space magic makes for fun gameplay, no explanation required), then it's completely fine.
But if a game tries to be somewhat authentic and takes pains to mask its fictional content by providing rules, backgrounds and imposing limitations, only to at one point say screw the rules SPACE MAGIC TIME because a twist in story or whatever simply can't be properly framed within the game's lore, then it's bad.
Let's not forget that space magic, especially in Mass Effect context, is little else than ridiculing subpar writing that is unnecessarily stretching a players suspension of disbelief. Flinging a guy around like a ragdoll with biotics? That's cool I guess, it comes down to Mass Effect fields and how they work with altering mass, so lowering a targets mass and inertia with a biotically induced mass effect makes him more susceptible to outside forces and can be pushed around as if they were a soap bubble. But biotics sucking life from targets? That's not what we were told how mass effects work. How can manipulating mass suck out the life from someone and add that lifeforce to yourself? Whaaaaaaaat??? -> Space magic.