This year the dates on the tickets show Nest ending Sunday 5th June. The assumption is therefore this is the day most members will leave site, and therefore people are expecting to go to work on Monday.
In 2018 tickets also showed that the end of the event was a Sunday (10th June in that case). The temple burn was held on Sunday night and therefore lots of people (almost certainly including most newbies who didn't know that temple burn is traditionally a Sunday) missed this key community event.
To avoid a similar situation, I propose that that the burns are held Friday and Saturday evenings. (Or alternatively the dates on the tickets be changed to finish on Monday, and this to happen fast as holiday bookings are already going in)