Seems like it shouldn't. The only thing ironblood afflicts you with is a snare, but in every context where a skill or set mentions a disabling effect(the way reactive does), snares are not included. e.g. immovability potions, the skill "immovable," Alessian order. I haven't tested it, though.
Snares no longer proc reactive. A while back people who stood in templar aoe ritual were having it procd and it was retardedly hard to kill someone when you put it down. As a result of zos club *** the fix they just decided to make it so snares didn't proc it. Was way back last year.
PC Master Race
1001CP
8 Flawless Toons, all Classes.
Master Angler
Dro-M'artha Destroyer (at last)
Tamriel Hero
Grand Overlord
Every Skyshard
Down With BOP!