The hate for it is from the large amount of customization that is done to workflows at large organizations, many times in the name of "compliance" or "security".

Instead of just moving stories between lanes (To Do, In progress, Testing, Done or whatever), you're filling out multiple forms, clicking a bunch of checkboxes, adding links to test results, build results, PRs, etc, all for someone you'll never know to run a weekly report and send it off to a bunch of people who will never read it. But they will generate a wonderful paper trail in case something happens.