Imo Howe can’t have fancied Dubs that much, his fitness record alone would have any decent manager asking questions tbh. Pope was signed as a number 1, not to provide competition for the shirt.
He likely would have expected Dubs to not want to stick around as 2nd choice. All in all the GK position is a lot stronger now even with Darlow as no. 2 - Popes fitness record is pretty solid.