A German server also added a pillars of fortune gamemode last mode. I've no clue whether or not Cubecraft came first though, they may as well have gotten the idea elsewhere. Not like Cubecraft's take on Skyblock wasn't obviously influenced by Hypixel's hugely successful Skyblock game or the disaster gamemode.
You take some, you give some lol.
That said, it's a shame how boring and uninventive Hypixel has been for years now. It's nothing but focus on Skyblock. The prototype lobby has barely seen any action and whenever they do something now it's usually something like this: a copy.