True true.
But new era needs new name. It would have been perfect to write on the package that it's from the makers of IL-2.
But taking the old name.
Oleg said himself that they want to make newbies also from other genres to buy the game.

When new people who haven't played IL-2 hear the name, they will maybe look in the internet and find out (by mistake) that the game engine is from 2000 or so.
Goodbye big sales.