No Idea where to find it now, but someone had the numbers figured out for how much HP each point of armer equated to. (That is, how much HP was saved by each point.)
The TEC Meson Bolt Cannon removes 3 points of armor for 60 seconds, and deals 175 damage per shot on top of it, with a 40 second cooldown. Dropping armor can be just as devastating as stopping regeneration, even if it is just for Hull. And the Vasari are the only ones capable of partially bypassing the shields given by Advent Synergy, but usually must get in range to take the extra 50% damage, which is also pretty much the same as no Regeneration due to the extra incoming dmage. Right now, the only thing the Phase Missile Platform has going for it is no cooldown, and the fact that the effect lasts even while outside its range. Although technically, so does Meson Bolt, just a fifth of the Duration.
EDIT:
Found a thread with the armor numbers, and a chart posted by "unwary" :

So Meson Bolt Canon effectively reduses a unit's HP by up to 15%, or 150 HP per 1000, for 60 seconds, and deals a permanent 175 damage until regenerated if the unit survives combat.
Most late game fleets should not be out without some sort of healing unit to back them up.
TEC have Dunov and Hoshiko
Advent have Mothership and...Eh...One of their Cruisers, Subjugator I think? Also their Light Frigate and Antimater platform for AM.
Vasari have Skirantra and...One of their Cruisers, not sure which.
And all 3 have repair platforms, as well as other abilities I'm sure I'm forgetting.
The Disruptor Nanites ability says it removes PASSIVE regeneration, not healing from other sources. If it isn't allowing ANYTHING through, this may be a bug that's been overlooked, not an out of line ability. This is based on the description of what the ability says it does.
-Twi