The range of the Dark Magic isnt far from the Spatial Magic range.
I didn't compare the range of Dark and Space, I compared it to Time, since on the wiki a time stop is by default universal and has things like going back in time.
I said that dark is more versatile since IZ can increase things with Dark like lava and there is the mind control thing.
if the Spatial EE was useful he could have just used it once and would be over, and yet he went with the Dark Magic, a BFR technique.
there is something called a "script".
Why didn't IZ also instantly stop time at the beginning of the fight against Mash and then kill him? or stopped time instantly and killed all his friends. Why did he wait for the last second to stop time? Why didn't he do these things despite giving him a victory? Because there is a script.
IZ could have also used Space Magic on Mash's friends, but he didn't do that. Not even in Domina did he use Space Magic. And as far as I remember, it was never mentioned that Mash or Domina's friends resist Space Magic.
The guy could have even summoned Uranus and done an AOE EE and finished off all of Mash's friends at once without worrying about getting hit since he was immortal. But he didn't do it because it was simply a script.
Also, Zero went countless times to the past trying several things to try to change the outcome of the fight, so we can assume without much problem that he tried to use EE against Mash at least once
And Mash could have simply dodged those attacks the same way he did when IZ acquired Space Magic.
Mash can't resist the time stop, which would give IZ a victory if used correctly, but he still managed to beat IZ every time during time travel, and IZ certainly used time stop at least once by logic.
So him dealing with Space Magic doesn't mean he's resistant to it, considering he beat IZ every time even though he didn't have resistance to Time Stop for example.