Does it actually say that it is for girls. Erm no! If my DD wanted this, she could have it. If DS1 or 2 wanted it, they could have it.
There will be other bags in other colours and other shapes and sizes. None of them say "for girls" or "for boys".
I think the "pink" argument has just got silly. Its just a colour. Some toys are pink and some are other colours. Kids can pick what they like.
Stereotypes are created from parents. What is worse, making a girl wear or use nothing other than pink and princess sparkly things. Or saying a girl can never have pink just because it is seen to be girly.
Answer: both just as bad.
DD1 likes princess, sparkly things and kicking a football about.
DS1 loves teddies and dolls and wearing DD's princess outfits but he won't eat from a pink princess plate.
DS2 is just 2 but loves balls and cars and wearing DD's headbands.
I can't get worked up at all about they like or don't like. Its just stuff.