Just for info since you said
"It’s purpose-designed for on-wall use"
They can now be mounted on the ceiling too
SVS have design a block system that use the same wall mounting bracket, but once in place, it will stop the speaker to fall due to vibration, very limited quantity at the moment but will be available.
Of course it take little while longer to install, due to the angles and distances if you want to follow Atmos white paper, on installation.
Took me 15 hours to install the bracket at 45 degree facing the MLP (since you can only use 2 holes from the 4 holes mounting bracket, I use 1/4-2" long lag bolt, overkill
), where the studs on ceiling were, I achieve 49 degrees for the front, and 51 degrees for the back ones (angle from the MLP ears, to the ceiling), a little off from the perfect number (45 degrees), but still within the recommended angle
Just thought to share this info.