I think you put too much weight into this forum, you....fanboy.
Some games are 100 meters runners while others do best in marathons.
Some games sell 1 million copies in a month while others sell 2 millions in 5 years.
A smart game developer has a bunch of different types of games in their lineup.
1C knows that IL-2 series will make money over time. They have other games to give them instant cashflow.
That's my take...you fanboy.