Point is, they are not stuck. It is far from the only thing they are making. They just have created an amazing world with FFVII with great lore, great characters, and an amazing story. Multiple games taking place in that world is not that crazy of an idea, nor is it uncommon in the RPG genre. Some of the games sucked, the remakes are awesome. It’s grown beyond a single game at this point, it’s a series. Making more games in a series, does not make a company stuck, especially when they are still release games in other series.