Regarding the OP's chart, two things stand out:
Drover at 15 DP - While I do remember when it used to be OP, it is so not worth 15 DP that it sticks out like a sore thumb. Equal to a Hyperion? More expensive than a Falcon? It's a liability at 15 DP. A Heron is only 5 DP more? LOL. Move it back to 12, though to be frank, I've been using Condors and not looked back. Reserve Deployment needs to be fixed before I'll ever use a Drover again and even then, not at 15 DP.
There sure are a lot of 20 DP Cruisers. I knew this but I guess seeing it visually hammers it home. That being said, I don't disagree with any of them being there.
Finally, after doing an ALL DESTROYER run, I'm not entirely convinced the Manticore is worth 12 DP, or should I say, I don't think it's operating any better/worse than a Sunder, Hammerhead or Enforcer (that all cost less DP). The Medusa is also in a tricky spot because I don't think it does any better than the Big 3 mainline Destroyers and still costs more. To be fair, the Enforcer feels far, far more powerful than 9 DP now that it has stupidly high armor. It could probably be bumped up to 10 and the Manticore down to 11. Medusa, if it stays at 12, needs more something, though I'm not sure what. I feels OP-starved for being a premium option. I'd bump it up to 100 OP.
Not to turn this into a balance thread but...visual aids help!