First of all, no one is expelled for disagreeing. And Amish regularly leave with no issues nor problems, making that decision before adult baptism. We know lots of people who do that. They still happily and friendly live next to and interact with Amish.
The problem (shunning) tends to come if Amish leave after baptism but I have yet to hear anyone expelled for disagreeing on issues.
As for children working condition protection, what do you think Amish children / teenagers do? They primarily do lots of household chores, certainly more than regular American kids but they do it with their parents and their siblings. Amish are not focused on making lots of money and they tend to do things at home so it's far unlike factory farms or third world factories one might imagine.
As for woman being poorly treated, it's quite rare for anyone, man or woman, to be poorly treated, attacked, demeaned, etc. among the Lancaster Amish from what I have seen and heard. I think what you are getting at its restriction of typical American freedoms. But the same goes for Amish men. Going out for beers with your buddies, getting a girlfriend on the side, building a corporate career, doing a YC tech startup, hanging out on a boat / yachet, etc. are all no goes for men. It's certainly not for everyone.
I would encourage you to check it out, it's less than 3 hours away from NYC and it's quite an experience. You might be surprised about how happy and fulfilled the Amish in Lancaster are.
Net/net, the article perpetuates a generally positive impression of Amish life because Amish in Lancaster generally have a positive / fulfilling life.