What you call "post-theatrical" revenue is business products often offered by Disney in their earning's reports referred to as "Direct-to-Consumer". And Direct-to-Consumer has been a mega-losing business for Disney for years now.
In Fiscal Year 2023, Disney lost $2.5
Billion
(notice the letter B, please) on Direct-to-Consumer. During the first 90 days of Fiscal Year 2024 they lost another $138 Million on Direct-to-Consumer. On top of the hundreds of millions they lost at the traditional box office.
And in the earning's call last week for Quarter 1 of Fiscal '24, they reported the following losses for those 90 days;
Studios = $224 Million Loss
Direct-to-Consumer = $138 Million Loss
When a $200 Million movie flops at the box office and loses a hundred million or more for Disney during a fiscal quarter, they don't magically make a profit off that loss by losing
another hundred million or more streaming that same box office flop on Disney+ during the following fiscal quarter.
https://thewaltdisneycompany.com/app/uploads/2024/02/q1-fy24-earnings.pdf