It's true Superman hardly acknowledged his death, but he didn't really do much for him when he was alive either, so at least he's consistent.
Lectured him on the exploiting the S-shield a time or two in the early days. Tended to moralise at him in any team-up. Gave him a Kryptonian name, which was quite a nice touch admittedly, and palmed him off on Ma and Pa Kent rather than take some personal responsibility for his own "son".