You die already still care so much about your remains meh?
As for the Ching Ming thing, Analects had this passage, 'The Master
replied, "That parents, when alive, be served according to
propriety; that, when dead, they should be buried according to
propriety; and that they should be (offered) sacrificed(s) to
according to propriety."'
So as long as we manage to do that, I think it should be considered
fillial.
