exactly. I'm just saying that the people who feel BUIS are necessary for a red dot, do not put a backup IR laser on their rifle, even though more than half their shooting will be at night.
even though I'm just a civilian, I shoot at night with an IR laser more often than in the daytime, and figure if I ever "need" an AR, it will be at night. If I could get a reasonably low cost, unobtrusive, super light weight back up IR laser, I would. I think the odds of an IR laser failing are WAY higher than an aimpoint or eotech failing.