I think it's just standard response, and one that isn't too hard to make considering that Pokemon Sun and Moon is just around the corner. Unless you're rushing through it, casual gamers can take between weeks to months to clear a game and a Pokemon game at that, which is designed with longevity at its core. If Uranium is released a year before or after it might not have been an issue, but as a company whether to take down a fangame that may potentially drain interest and satisfaction (the latter comes from players comparing Uranium to Sun&Moon, of course) really isn't too hard a decision to make. Starve the slaves so they'll do whatever you want to get your scrap of bread, and in the meanwhile kill all other breadgivers even though they're technically promoting your product, because that's how you gain the most profit.