Giveaway for multiple different games?

because SG takes it'sw data directly from Steam. if there is not item in steam that is let's say GTA V + Witcher 3 as a single purchase it's not present in SG database as well.
Not to mention problems with pricing, CV, some games being in budle list and some not - how to calculate if your "pack" contains both, what picture should GA have, having too long GA name (listing all 50 games in a title? o.O) and probably many more.

To give away two different games or more with one giveaway? It would be confusing without end. Also if people are only interested in a part of the games of your pack shall the forfeit the complete pack or shall they take the "risk" of something they are not interested?

Because people must be able to choose the giveaway they want to enter. Suppose you create a giveaway for 50 games and I enter but am not interested in 20 of your 50 games, it would suck if I won 1 of those 20 games. I wouldn't enjoy it and I'm sure someone else really wants the game even though I don't. I don't enter giveaways for games I don't want.
That's why we have separate giveaways.

Besides being completely impractical it sounds more like something a winner would profit from rather than the creator. 50 games as a package, yeah right...