I sympathize with those who have difficult to explain disabilities and reading through this some of this, it is confusing. However, Disney is extended time to figure it out from 60 days to 120 days.
That's very generous.
I have been on two trips in the past 10 years that included people who outright abused the previous disability system. One group had a huge number of people with them and they were skipping every single line. The other group was smaller.
These changes Disney is making are absolutely needed. The previous system was so open to abuse that it wasn't sustainable. And that's why it's gone.
If someone actually has a disability that keeps them from being able to wait in line like everyone else, this new system will help them. Their wait times in line will also be reduced due to abusers not being in line with them.
It's a win for everyone.