A game shouldn't need mods to be a good game. Mods fill in what Devs miss.
I agree about the Gallery though. Now that consoles are online so much there's no reason why they shouldn't be set up.
Really though, whatever you may consider is missing (which is a lot), you're getting no less than if you were playing PC.
And don't feel too badly like you're second class citizens. Partly because, since your Sims 4 is a port from the PC, you kind of are. ;) And also because in EA's eyes, we're ALL second class citizens.