Yes, I've been in correspondence with some people in PA. They (and you) have my sympathy! I've lived in Oklahoma and North Carolina.
My Non-Public School compliance this year required me to go to the state's website, verify my address, and check off the number of compulsory-school-age children I'm educating, by age and sex. If the state ever calls or comes to the door, I can arrange to meet them at a neutral location and show them that I possess standardized test results, attendance charts, and vaccination records. (The state is not allowed to have an opinion on any of those items, only verify their existence.)
I hope the family in the article will find an educational arrangement that works for them!