Earlier quoted context omitted.
agreed - it for sure would have been easier/cleaner/safer to just show a message that said "please play the official game on whatever.com"
It is not this developer's job to parent someone's kids. It is a parent's responsibility to make sure their child only gets access to the appropriate websites when they are young.
You can't protect your kids from the internet, you can only warn and educate them. I'm not saying to give them unlimited access from the get go, of course not. But I'm just saying you can't stop them either.