Should I say something?

My friend just posted on Facebook that she just forward faced her son's car seat. He's not even a year old yet. He won't be until April. I feel this is extremely unsafe but I don't want to offend her. Should I say something or just leave it be?

Edit** she posted a picture of him. I didn't realize there were circumstances where it would be a safer option. I've just always been told to rear face until two. I haven't said anything to her but she's also not a close friend. I went to high school with her. She's more of an acquaintance than friend so I wasn't sure if I'd be overstepping if I asked her reasoning.