Should be fine, I had one get sucked through the overflow, down a few feet of pipe, squeezed through a ball valve and I found it in the sump! Lived for another year or so and then died(who knows from what)
Provided its healthy to begin with your anenome could definately survive much worse.
Now this is sucked into an intake!! This shot was taken soon after it started pulling itself out of the overflow. It is an LTA at over 8 inches across in a 1.25" pipe. It literally had a hole chewed into half of its body. It took a couple months but it made a full recovery. It may be necessary to cover your intakes with some type of screen or sponge to keep your anenome safe long term.