Is it time to grandfather the Mythic lockout restrictions?

Not being able to pug mythic bosses because you're locked out from the first two just feels so outdated nowadays. Dropping the restrictions a week or two after RWF would save those from having to do mythic splits, but would allow those that can't commit to a consistent schedule to be able to push through mythic throughout the week without worrying about wasting their lockout.

I mean is there any real reason for Blizz not to implement a change like that at this point?