Kird, there are very densely populated XL maps that take 10-12 months to complete, and there are very difficult maps that can take 20 months or more! Very few people manage to complete them anyway.
It should also be kept in mind that the patch for "XXL maps" cannot overcome the limitations built into the game regarding the maximum number of castles, dwellings, mines, and other objects!
And, finally, I must say that boasting about a map made in 2 days is somewhat inappropriate... ;) Good maps are made over months! And only players, not the author himself, can say whether a map was successful (or not).
(Василь Симоненко. Люди – прекрасні)