I feel like weekend voting would help for those who work "regular 9-5 jobs" but those who are young, and say still in college/university and working weekends, would now have a more difficult time voting. The weekend type jobs usually won't let you have time off to vote, they schedule you that time because they're busy, so it might be much more difficult for those people.
At least the weekday election day somewhat levels the playing field, at least as I see it.
I'd go beyond that even. The US loves pageantry and celebrating freedom. But what event could be more appropriate for a celebration of freedom than voting day itself?
You could have small festivals at every voting booth to encourage people to come out to vote, and you could even move the ballot boxes as part of a big parade so there's absolutely no doubt in the process.
Texas has early voting for about two weeks prior to poll day, which makes voting convenient. That said, the recent attempts at voter suppression and gerrymandering abuse are saddening.
At least the weekday election day somewhat levels the playing field, at least as I see it.