Just came out of a Secure mode match which my roulette gave me.
It's still a thing so I think they shouldn't stop improving it with minor adjustments.

I think the main flaw is the one giant node which is worth so many points it almost invalidates the whole rest of the match. Unlike the more recent Shatter, it gives 100% of the node points to the team with the highest dps instead of splitting the points based on amount of participation.

Simple fix, give points in proportion to contribution instead of all-or-nothing. Also wouldn't it be more fun to change the Limit Break into Adrenaline Rush to match all other frontlines modes and encourage it to be used more often, instead of everyone saving LB for the giant node to get all the points.