Do applications break after auto-updates? of course they do and that is something that is important to ubuntu users because they have to manually fix. Given the choice I would rather choose when to upgrade so I could set aside time for fixes.
Ubuntu users are not windows 10 users. Why treat them in the same way?
It's great that you are diligent about updating your software regularly. But how many people do? If you agree that it's a low percentage, then why is not better for the ecosystem as a whole to improve security and compatibility?
How often Ubuntu users who turn auto-update off manually update themselves is an actual thing that can be researched. It's disappointing how many developers just think you should assume the worst based on your imagination and ego, then justify taking away control from users whenever one can get away with it as a safety measure.
Many more examples.