Why are the CL-215 and 415 ingame?

I don't understand the rationale for them being ingame. No one uses them, they are slow, have tiny capacity, short range, and basically don't serve any niche that isn't already covered by the J-31 and similar (which also aren't used at all).
 

Someone can say that for a number of aircraft in the game. It all depends on how an individual wants to play. Honestly, who cares.