I think what people are saying is that it would make sense to play it a week earlier. And the fact that we have cancelled our friendly on that Saturday and that Newport have also kept that Saturday free suggests that the two clubs are looking to play the game on that day, should the EFL allow them to do so. As for whether the EFL will grant any request to move the match, as you say the EFL has announced that the tie will take place in the week commencing 4/8, and that’s all we currently know…
If the two clubs do make/have made that request and it is turned down, eg due to Sky’s wishes or the EFL’s wish to keep the launch of the new season ‘cleaner’ with everyone starting on the weekend of 2/3 August, it would compound what is already arguably invidious treatment of a newly-promoted club.