Please read my 2 posts carefully.
I already said that I understand how it works, the devs NEED the whale players to survive, heck, I'm the one who survive by the Whales of the game which I'm working on. But the 15 levels prestige is a money sucker and false psychological trick that encourage you to pay to get some bonus, and like you said, not much "different" so why need to go 15 levels then? If they have the money they'll already willing to pay for gem and stuffs, you don't need a one more VIP level to lure them, it's just not fun.
And I didn't complain about the unlucky gacha which I DIDN'T get valiant or 5* heroes because I know it's supposed to be rare, I complain about that I weren't able to get a good HEALER. This is supposed to be a tactic games and it depends on too much gacha luck to build a "fit to your style" team to work. If I already have a team I like but I'm still lose then it's my fault and I need to get better tactic or study the game better, but here I'm not even able have a fit team to work with in the first place, it's too luck dependant.
So let me sum up what I was talking about in my previous rant:
- Lower the number of prestige levels
- Have a class specified kind of gacha, to reduce the frustration of not able to put up your team style, like you want more archer in your team, you choose to summon archer pack, sth like that, similar to Crusader Quest.
-> And you know what, VF actually does have this feature after you did 30x premium summon but it's a temporary popup - offer dialog that you'll have to pay REAL money right away to get the specialized pack or else the offer will be forever lost.