Yes, and that Glock trigger (which is double action, by the way, which inherently adds another level of mechanical safety) was moved something like ¼ - ⅜" to get it to put it in the same condition as demonstrated by the P320 moving less than 0.050". In normal use, there is less than zero chance something is going to mysteriously shove the sear backwards along a fixed ramp, pushed down by a cam so there are load vectors on the sear in 2 directions... all the while further compressing the striker spring. This is exactly what is required to make a Glock sear drop below the striker foot. In a P320, the striker is fully cocked, and the sear (which is only held in full upward position against the striker foot by spring pressure alone, no mechanical hard stops) only has to be pressed downward or fail to fully reset because of debris, or the sear foot caught on a rough spot on the sear notch and... combined with slide movement, you run out of sear engagement. A Glock sear cannot be pressed down below the level of the striker without also moving backwards against striker spring compression because it is held into a fixed height by its cruciform shape riding inside a fixed slot. Any mechanically savvy person comparing the two designs can see they are not remotely comparable in terms of mechanical safety. And this is before you even take into account the inertial trigger block on the Glock that the P320 lacks. Double action vs single action. Something isn't going to press the trigger back that far when the gun is holstered. We're not talking about probability of human mishandling here, we are comparing the inherent mechanical failsafe conditions of both designs. Not even in the same universe!
You can make any striker pistol do the same if you pull the trigger far enough, but the key point is the P320 is less tolerant of it, has no other mechanical devices preventing it. The same person who made that second video even admitted as such in a more recent video.