I'm pretty sure Sir PJ is not being malevolent, he's just a hoarder. Any video I've seen of his collection shows masses of items with no rhyme or reason to categorization. I would suggest he's not denying the moulds to other manufacturers, it's just part of his stuff. WE want his kits re issued but do kit companies REALLY want to get involved? I know I'm speaking like a heretic but the accountants run the show. The last shot of kits was probably sold mostly to speculators not builders and subject matter did not drive demand. Cruel words I know....
Steve