I am really curious to know why?
Saw them last year and they were easily the best DJ actually I have ever seen. Like nothing else I've ever seen before the way they blend all their best sounds together. In my opinion this is an exceptional addition.
If you look at those dates, there’s a minimum of 4 days between each date, so no.
Also, it’s actually rare for an act to do Glasto in the middle of a stadium run. It has happened but it’s not likely