That's a rather poor review and "test". Let's see the same "test" done without that battery, let's see it done with a parts store AGM, let's see the guy bust open the housing so that we can figure out precisely what's in there and check out the manufacturer specs for ourselves.
So much shady shit involved with these car audio branded battery companies and my guess is because if they were honest about what their stuff could and couldn't do you wouldn't buy it at their prices.