Did you read TFA? This had nothing to do with neoliberalism or whatever.
Everyone agreed with the spirit of the rule, even the two republican appointees who voted against it.
They voted against it because the FTC cheated and broke their own rule making process, they believed it would be struck down by the courts because of this.
They were right. The courts sympathized with the rule, but held that the FTC cheated it's process, and that if left unchecked it could create a tyrannical FTC issuing rules at their whim, ignoring the true economic impact of their rule.
All this court ruling said is that the FTC needs to follow the law and their own defined process for rule making.
They are free to implement this rule, they just need to do it the right way.
While we may not be happy with the short term effect, this was a good ruling. The FTC will go back and do this properly, and hopefully next time will follow the law when making rules.