Well I defend it because I dont have problem with it (yes I would be happy if I can max 3 stars on one girl every day by spending 100k in the shop so I can see her scenes faster but in the same way I would love to get event girls without spending kobans) ... It can be problem now since we are in event and we get 3k or 6k from bosses that drop event girls ... but after that you will be able to farm 500k from boss fights alone and more from your harem (depending on number of girls ... I have 61 girls and my max is now at 118k since I didnt max all girls) so with collecting every 2 or 3 hours you can get more ... and 1M a day will let you upgrade girls in not that long time compared to what you would need before while waiting for shop refresh (and again ... after 2.0 I got lot of girls at the same time so that is why now I dont have any cash at hand ... in one or two weeks or one month at max I will max stars on all of them and will be able to save money for next girl so I am able to max her in one day thx to new affection update)

And btw those numbers are if I take it easy and dont farm all day long