In the situation where you are exd doing Oro missions you have a character with a bunch of extra slots, powers 5 levels higher than the mission, and you're probably level 50. You definitely don't need to be able to use your immob at the same range as your blasts to do that.  
	Now if it ruins your fun, of course that's completely subjective and I'm genuinely sorry if it's the case.  But it's definitely NOT enough of a problem in terms of actual performance to justify the set getting to keep range on powers that the devs have explicitly said are supposed to be equal across sets.