After playing a number of games, it seems to me the RNG of Loots is more impactful than that of, say, Hexes and Boons. I still think they are more like Black Market than Tournament prizes, but they are also even more Hexes/Boon-ish in their RNG.
Maybe they'll be more fun to play with overall (hard to say this early), but my point is the RNG is kind of crazy. I don't even mean who gets access to which ones, that's not even important usually, games don't last that long. The issue is how soon you're able to get them (without sacrificing too much opportunity cost to building the rest of your engine, since they're mostly a Payload) -- as well as which ones you get very early -- a deck can simply spiral very fast and leave the opponent's in the dust.
Obviously there's always been a randomness component to this game--shuffle luck, starting split and heirloom luck, etc, but what I am saying is Loots add on to that. Maybe you like them maybe you don't, but the people who dislike Hexes/Boons may end up disliking Loots even more than they dislike those, is my take, unless they really happen to enjoy the other (Black Market-esque) things Loots bring to the table even more.