Both of these skills do insane damage with module amper and ignore shields. Outside of armored lockdown there is no counter play defense because the attacks hit near instantly and shields do nothing.
I've been on both sides both against stacked comps with 3-4 corvettes running blast ABW, and on the winning side of this comp as a corvette running the combo.
When I'm running this with 2-3 other corvettes, its hilarious. We just rush their fleet and if everyone is grouped within the ranges of the blast pulses they all just instantly die.
I've seen fleets of 4 ships get wiped in one attack run, unable to do anything but sit there and die.
I do think there should be attacks that bypass shields, but the ease of use and execution of ABW + blast pulse is just silly. When you stack multiple vettes that have this capability and coordinate attacks to blast their fleet at the same time, there is no counter play or reaction windows.
Anyone in range of the pulses instantly dies unless they pop armored lockdown.
ABW is not that bad, at least you can avoid it or kill the vette before they are in range to warp. Blast pulse is absolutely ridiculous. Corvette duels basically turn into who can get desperate measure procs and double blast pulse faster.
The range is insanely large and impossible to escape, even with fast ships. The pulse will also kill you before the animation of most warp skills go off.
I'm wondering how this would be remedied in 2.0. Currently, you can kill any fleet comp by pulse stacking on vettes. You don't even need healers, tanks... nothing matters. Just get 4-5 corvettes and if they all group they instantly die. If they branch off you can just pick them off one by one with vette runs. There currently is no counter if the blast pulse team has half a brain.