Actually no. Us Europeans still get Monday morning to play. Not very crowded at that time though because many will have to work or go to school just then.
Yes you're right, the Europeans are often up and some are playing 8.00am-1.00pm UK and 9.00am-2.00pm CET.
Though I've watched the hourly challenge rates on previous challenges and the completion rate plummets so that 5 hours of
morning play in Europe before the challenge ends is equivalent to maybe 30 minutes of weekend play.
They are there, and so a player would be able to match make, but player quantity is drastically reduced
.
If you assume based on the challenge lasting 67 hours that you need to keep at an hourly rate of target/67,
then your platform will miss target by around 15% because of the drastic run-rate drop in the last 12-15 hours.
(yes it is a bit sad that I've bothered to work this out
)