That’s my reading of it, as well.
I noted this before, but Yoko Taro said before the game’s release that Automata would have a happy ending. What “happy” means in the context of a Yoko Taro game, based on my interpretation, is something that’s still very bittersweet. 2B, 9S, and A2 will be able to continue living and have a chance of a life outside of the circular hell that was YoRHa’s war with the machines, and so there’s hope that things could be different. But at the same time, they’re still who they are, and can they ever truly be happy in a world they were only ever built to fight and die in in a pointless conflict?