I have many of all of these anemones, rock flowers are very safe for most things and they prefer not to move but if they bothered by another coral they will move, hard to harm them bad. They do not sting at all on humans and are only moderately sticky.
Mini Maxi anemones are similar and they pack a potent sting to humans and corals, but rock flowers are very safe. Place them low, sometimes they like to nestle themselves at the bottom between sand and rock. I have found most of mine move toward rock overtime, if not initially.
They wont stay next to a BTA for a long time, but they wont die on first contact or even be seriously affected after prolonged contact.
One tank has some zoas that fell off and are right next to a RFA, touching it, they are slightly bothered but still fully open. Ill likely move it back tomorrow, but short term its relatively harmless.