Rave thread or not, I get what you mean.
If Gemma had said that in the mornings they only have Spanish TV on then that would be fine, but as you said she said that it was Spanish only in the morning.
If Mia was being bought up multilingual, then Spanish would be spoken all the time and Spanish TV would be on whenever.
I understand that there has to be a balance in a multi cultural home with languages, but Gemma didn't explain it very well.
Mia did look uncomfortable having to say Gracias and it didn't look natrual for her when normally she doesn't seem to have a problem speaking when a phone is pointed at her, which is sad in itself and a whole other topic.
I would like to think that Gorka speaks to her in Spanish all the time and that she will be fluent in both languages, but as its not something she's shown then it appears that's not the case as Gemma will show her speaking all the time.
Each to their own in a mixed language home, but I do understand what you're trying to say