I don´t see the problem.
You work hard and don´t have time --> buy the commanders (after all you should have the money if you work so hard)
You are a student etc. and have a lot of free time but no money --> grind (after all you should have the time)
Better than the old system.
Which is what I was saying all along. The other guy thinks that grinding is fine but, bizarrely, paying isn't.