Another way to get heroes

Im a f2p player that hasn't played in a while (used to play years ago) I've came back to the game (supremacy 1914) a couple of weeks ago, and i am lacking the majority of the heroes, im aware of the operation system which I love but sadly I get them done rather quickly and still lack other heroes, my proposal is to add a way to buy hero points with goldmark, for example:

100 goldmark for 10 points on a uncommon hero

500 for 10 on a rare

1000 for 10 on an epic and,

2000 for 10 on legendary

That way it will possible to farm games to upgrade your heroes, also in case a dev will be reading this, it wont be profitable to buy GM to upgrade the heroes that way, compared to the already existing real money deals existing which offer more value , therefore it will only most likely effect the f2p community also i didnt want operations to be less of what they are but it could be like saving 100-2000 gm every time you get 10 hero points from an operation, to anyone who doesn't like the idea i would please like your explanation as to why that is, Thank you for your time