
Because QA is for customers?
This is what happens when you spend a decade cutting coverage of test cases in your QA processes. Though clearly whatever team is handling the cursor input and touch pad on the new OS has been sipping the electric koolaid for a while now. Hopefully after they patch this memory leak they can roll back the touch pad defaults so that drag and drop file operations aren't akin to the three stooges juggling bars of wet soap.
God forbid one of my users on the new M1's has to drop a bad email attachment in the trash.