If I have 50 TH/s and you have 1 TH/s I will on average get 50x the reward. Is that also a broken concept?
At the very least its BAD. Dev kept us in the dark, whitepaper in no way explains how PoB works.
So to clarify, it's a pure gambling after all? With PoW one has % from total hash-rate chance of winning a block, but here one both has to win the block and risk it all to get the PoB coins?
No. Whoever burns the most gets the PoB block. PoW is the same as on other coins.