Well that’s why the goal here was to make it so that if you use DoubleBarrier, your composition is very vulnerable to Dive (or just a zergrush of brawl)
Tbh, if that’s not enough, they could go with this Bap change, and make it so that excessively durable+slow comps would just get wiped out by GravDragon.
Where as fast compositions would kill faster than the time it takes to build up a Grav.