I can definitely understand where her son is coming from.
With my first read of the article snippet above, it seems like he does care for her and didn't say anything malicious? I do completely get that she can be a little extra on social media, and while everyone should be able to have the life they want to live freely, I can understand how some of the photos and things she posts would make them uncomfortable. It's a tough situation when you have kids. It doesn't seem at all like they have any ill feelings towards her, and if anything, the article makes it seem like they really do want what's best for her, but understand that it's not a great environment for kids to be brought up in, which is very accurate.
Also, the wedding, it wasn't kid friendly. With all that's going on and all of the people who were invited, would it have even been appropriate for her kids to be there? It's an important day for sure, but definitely not for kids from what I understand.
I'm glad she's free to do what she wants and I hope her and her sons can repair their relationship!