Yes, yes it is... I am trying to think of a term beyond horribad to describe it, and it's tough. The game is high quality, going by UI design, overall design language and barely any writing mistakes. Lots of content added among a decent amount of CG, but the incredibly annoying mechanics and the rng completely ruin your experience. I'm not going into details as you're probably already aware, but even if you wanted to check out the new parts, don't bother. I'm sure the devs put a lot of hard work into it, but they fucking hate the player. The grind and the rng are simply not worth it, even if everything else is top-notch.
Sounds like another case of an amateur game developer showing off how amateurish they really are, because they don't grasp basic principles of enjoyable game design. They think the way to add "content" to a game and extend its playability is to make everything take 10x as long as it should. They think the way to add "challenge" is to put in RNG that gives you a significant chance of failing at everything for reasons that are absolutely in no way your fault. Like an amateur RPG dungeon master, they think they're trying to
defeat their players, rather than give them an enjoyable time.
I see this in a lot of amateur porn games, and depressingly it's usually the really
good ones that sabotage themselves with this. The lazy pumped-out crap doesn't fall for this because the developers don't really care about their gameplay and don't expect their players to care either as long as they can fap (or schlick), but when a developer says to themselves "I'm gonna make a SERIOUS game here!", they tend to screw themselves over like this, forgetting that the game they're making still has to be FUN. It doesn't matter how hardcore a challenge your game is, if the gameplay is frustrating and unfun, the game is shit.
I can name at least three other cases of high quality games sabotaging their own fun just off the top of my head. It's really depressing.