Also there were people with June estimates for the exact same watch most of us are waiting for but who got their watches on launch day.
Couple that with the one shipment a week the UK seems to get, pre orders opening on the website 12 minutes later than the app allowing app users to jump the queue, the regular shipments to DSM being sold to scalpers or the other 6 people in close proximity to London allowing yet more people to jump the queue, the fact that NO ONE received a watch on the first day of the second window, the fact that here we are a month on and Apple is still working on the first 8 minutes of pre orders and the blatant favouritism to the US with regards shipments and there is plenty of reason for people to be feeling slightly aggrieved even if Apple haven't missed a delivery window as yet (besides the start of the second one)