Morning jono. I also agree that 19d is fine but 22d not, for the reason you’ve given.
Geeker @4 - re the parsing of 26,27, are you saying that you didn’t bother to check that the parsing worked? If so, then neither did I: what Paul has done there is quite a feat, but a feat rather for the sake of itself in my view, which for me prevented it from entering COD territory (well, that and the fact that the surface is verging on the meaningless, and that the clue was so long that it didn’t come up in full when I clicked 26 on the grid!)