There is no giveaway , including the 2ETH promo is not a giveaway if you ask me because it is basically a raffle where players need to deposit and wager in order to have a chance for the raffle.
Well, I understand your expression, but at the same time, you are wrong that it's not a giveaway. In all understanding, a raffled giveaway is a giveaway, no less. The only difference is that it's a type of giveaway with some conditions attached to it. This is why one should fully understand the Ts&Cs of the giveaway they are opting for to avoid misunderstanding.
I hope in the future that CasinoBet will do a promo that has the kind of giveaway you want.