It probably wouldn't do much good, no, since COIE and all its subsequent fuckery happened while Morpheus!Dream was still in captivity. Daniel's been shown once to honor the debts of his predecessor/prior self (in return for Martian Manhunter having pointed Morpheus to the location of his ruby, Daniel assisted them in beating Starro by allowing them into the Dreaming to fight), but since his protection of his parents evens things, from his perspective, he probably wouldn't feel any connection or obligation to any other Earth-2 survivors.