Comparatively yes - but because of what he said: "This is for Syria!" I think the action shows he is being just a tad bit more than idiotic.
I see in another post that we should give up our guns in America now. Probably right, for all we have to do to thwart terrorism now is to shout back, "You ain't no Muslim, bruv!" at any and all attackers. This will induce shame in the attacker; he (or she, now) and will naturally assume a submissive posture, drop their weapon (be it a knife, machete, gun or atlatl) and willingly surrender to authorities.
In watching the video, it seems to take quite a long time for the police to decide to use the Taser.
People doing shooting - mass or whatever - rarely worry about anything but themselves and the voices in their heads.
It should be difficult to buy guns, but you are going to have to get mental health reporting through, and obamacare certainly is a big roadblock to that - and even has created a gap in mental health coverage.
I support tighter gun sales and ownership.