Whenever I see this kind of story (busier with more people) I get curious.
1. There are a fixed number of airplanes flying for the majors. They don't role out "spares" and create extra flights on Xmas or Mother's Day and certainly not on "going home from eclipse" Monday.
2. The flights are normally pretty full. (I won't give an exact number because I don't want to start a debate on the exact number, but I think that "pretty full" matches my experience.) So where are all these extra people going? To sit in the airport and wait for Wednesday flights? In other words, how much busier be on "leaving the eclipse Tuesday afternoon" than any are on most "business people going home on Friday 100% full afternoon"?
So when they say "normal throughput is 250/hr" do they mean that is the maximum speed on busy Friday? Or do they average in the 100/hr at 6am on Saturday with the 900/hr at 4pm on Friday?