They had a year and couldn't fix the pop in. I also see people mentioning the dlc is tougher than the main game but I really think that's more a combo of bad level design and the new characters really not feeling any good to play. I'd keep playing but this game already took 30+ hours from me when I 100% the main game at the beginning of the year. I honestly don't think I would've even went that far with the main game without the mods making the gameplay feel better and I don't think I'll be waiting around for to get expanded into this content. I'm not exactly filled with hope but maybe Frontiers 2 will fill at least a bit less like an alpha build.
Oh, and I don't feel like I should have to say this but power to anyone who enjoyed this game and it's completely possible to dislike it without being influenced by a youtube review guy.