Well, they announced it in 2012, let's say they realized a year later that they need their own engine. A game engine requires 2 to 3 years, was just looking at a list of game engines and then searched for their dev time. That would be 2015-16, so that's 4-5 years of developement with a 100 men strong company, this is no indie dev studio anymore and for 50 € - they need to deliver something
Also sound plausible. But 100 emplyees is not a big game developer company (Not indie either) and 4-5 years development is really short. 50€ is expensive, that's literally the only reason I can see people can be mad about. Because 50€ is AAA pricing without EA.