I did not argue that it's a bad thing many apps can't be installed to an SD card, only that an SD slot isn't a sufficient mitigation for inadequate built-in storage because of it.
I'll make that argument now though. I don't want an operating system telling me I can't do things because it might not be a good idea. Show a warning when something might not go well, but my risk tolerance regarding instability and data loss are mine to decide, not Google's and not some app developer's.
In an ideal world, probably yes. In a world where proprietary apps for Android/iOS are increasingly hard to live without, I'll settle for Android with root (though some apps try to make that difficult).
I'll make that argument now though. I don't want an operating system telling me I can't do things because it might not be a good idea. Show a warning when something might not go well, but my risk tolerance regarding instability and data loss are mine to decide, not Google's and not some app developer's.