That's actually a good suggestion/addition. It would not be connected to any opportunity, just a talk at dinner or something like that.
But then many kids would complain that they should at least blow him to make up for it or Max should get to spank naked all of them at the same time

or better team up with Kira in order to do so.
However, the situation was
not ignored. There's Ann you can have a talk with two times when she talkes about Eric and pretty much does what you asked for with hugs and all. This will lead to progress in the Yoga opportunity in a future update.
Lisa resumed kissing lessons, I
do believe that there was a word about Eric, but I am not sure about that - I might mix something up. Also the situation came up when it comes to Olivia. Lisa was worried that after Eric, Ann would not want Olivia at the house being naked.
Alice got no new conten since that situation, so maybe there will be something in the next update.
And about motherly warmth ... Ann spends way too much time whining about what a bad mother she is rather than trying to be a good mother, that's true.
btw ... I hoped Ann would not be quite as dumb in this game. But the first encounter when she saw Olivia naked: "Oh! Lisa, why didn't you give her at least your old swimsuit?" THAT was what came to her mind? Really? That she is naked because she had no swimsuit? Most people in that case would wear underwear. And of course it was way too easy for max to convince her.