I'm completely fine with this if the new program is permanent. It would feel weird if it went away. Why shouldn't spenders get a little bonus? My attitude is that I neither deserve or need to have all the meta champs, that's the challenge and the fun of the game.
That said, the $50 pack for 2500 points is just obscene and offensive. I don't mind Plarium selling virtual items to players at high prices. But I do mind it when some deals are 10x worse than others, and this is a particularly egregious example (the coins for path events are another).
I mean, I don't spend anyhow. So whatever they value packs at doesn't bother me. If someone wants to pay it, that's on them. I do think we might see the prices change moving forward, like we've seen with the soulstones.
Oh, and the program is permanent from what I've heard. So we'll have time to slowly earn the rewards for as long as we're playing....