Personally, I would not be too worried about "how much thought" she puts into the homework or even your b-day.
In my case, and I suspect others have had this same experience, when our MC tasked us with homework, my W did not even put anything to paper, as was asked, for our visit at the next session.
So, I think that if your W even participates in the task, it could very well be a step in the right direction.
Again, this would cater to my LL of Words of Affirmation vs. Acts of Service. In your sitch, perhaps something MORE would be that she "puts thought into it", since she is otherwise, at least in part, participating in the day to day life of the home.
Still, if she has not been actively participating as a wife or partner and she is now doing so... well... like I said, that in itself could be a positive sign.
