I can't remember if this has been discussed before, but I can't find it...
As I understand it, the reason why, in OT, we have gone to mandatory two-point tries is to get to the end of a game quicker. Makes total sense - kicking field goals/tries is pretty straightforward, and most kickers at such a short distance will make, rather than miss, so it makes sense to make them run the ball, which is more challenging.
But that's for 11-man. For 6-man - the wording of the rule (exception) is the same, they must run a two-point try. Except, a two-point try in 6-man is a scrimmage down (i.e., running/passing play) from the 7.
Is this intentional? To make 6-man run/pass while 11-man kicks, using the exact same rule verbiage? Or an oversight/assumption that both groups would do the same under the requirement to attempt a two-point try? I'm not sure I see how the intent of getting to the end of a game quickly is better served by having one group run/pass, and the other kick.