Most likely no. Pre-releasing/ejecting on clean landings usually has to do with the forward pressure or the toe piece design, not usually the DIN setting (also, their all riding 16 DIN bindings with a low of 9, so they're riding at at least 10, most likely somewhere in the 11-13 range though - so it's probably not too low). So either the Solly tech messed up all their team riders forward pressure (unlikely...especially since a few of them weren't Solly team riders) or the toe piece doesn't hold the toe of the boot properly (usually this is because of wear on the boot...again unlikely since those are probably all brand new boots their wearing), so that only leaves a design flaw, which is a bummer.
Now, this isn't a reason to not buy Solly bindings though...unless you're riding competitive pipe at that level it most likely wont release like that.
Also, after season Xavier's ski release for no apparent reason, there MAY be an issue with the pipe...weird grooves, over-vert walls, something weird could be up...but again, unlikely since those go through some very close examinations.