If we accept PvP is broken by META, and if we accept that 'balancing' is itself a balancing act that can go wrong, would an in-game solution; to have the Shipyards update their designs on a regular basis, be an appropriate response?
For instance:
Lakon gets regular complaints from customers that the T9 keeps exploding (nice work on the escape pods though man, they're frickin awesome). Having plenty of data on hand to detect the problem, Lakon notices that the T9 usually explodes in response to heavy fire from other ships. Lakon also notices that very few CMDRs use shields in their T9 and that very few T9 CMDRs put up much of a fight. Rethinking their design, Lakon sacrifice some of their Harpoints in favour of better thrusters and more utility modules, and fit shields as a Core Module, without sacrificing Cargo Max capability.
Meanwhile, Core Dynamics gets a ton of complaints from its CMDRs that in-spite of its Play Boy image, the FDL is actually a better ship for 1-on-1 combat, than their own built-for-combat gunships and fighters. In response to their customers fleeing for greener pastures, Core Dynamics has no choice but to update its ships. The Vulture, heavily down on power as standard, gets a new C5 PP, balanced in the Vulture's frame by losing a C1 internal or perhaps by changing the Class 5 internal to a Class 4.
This didn't seem so intensely a.n.al (really forums?) as I was considering it, but now that it's typed out...?
Anyhoo;
The result is that the Shipyards force PvP'ers to innovate and find the new META on a regular basis, whilst giving Open PvE'ers some regular, if brief, respite from 'insta-death'. No doubt, the Shipyards will occasionally f*ck it up, leading to numerous 'x is broken' threads but what's new? They'll also be in a position to recall and update their designs on a fairly frequent basis.
Y'know what? That's a fantastic idea. It'd also be mostly impossible to implement without causing complaints from any dedicated PvPers that their ship was now "outdated."
It would make a lot of sense and give the game a lot of variety, but it would also cause a forumstorm of epic proportions.