Why need to be so critical of people ? Its their life.
People can choose to be single, not have child. People don't  bat an eye. People drop their language skill, others hoo ha kecam, lupa diri, etc.

Social media induced outrage.

Yes you can be proud of being able to speak more than a language.

But this is her life. The consequences of forgetting one language, she has to deal with it, not us. But do we need to put her case out it social media or all the netizen to attack her ?  Forgetting maybe related to her own ability or the lack of it. Why so fast to judge people forget their roots ?

That language skill will come back less than a year.