@Tactician you assume that nordeus is some big company that implements new brilliant ideas every year.
Nordeus was a small Serbian company which under some circumstances (not any strong competitors in this kind of game, the exploit of smartphones back to 2010-11, the google play/facebook apps) found itself holding the scepters in football manager games.
Maybe the YA is something big for them.
We don't know how big the company is, how capable programmers they have, what is their budget to support the servers and those millions of acounts (with vast majority free to play managers) and what is the risk for their system to collapse with some bigger changes and loose everything they have built.
Big is relative meaning .