Dual Lock has a seriously strong grip - you really have to work to detach a pedal. As in, using a tool and leverage, not just bare hands.
I once heard somebody say he theft-proofed his expensive drive pedals with the stuff.
Even when the pedalboard was within reach of the public, a would-be thief couldn't just stealthily grab one.
It's also at least half compatible with regular Velcro: a pedal with Dual Lock sticks very well to loop side Velcro.
Don't think hook side Velcro would work well with Dual Lock. Never ever actually tried it though.