Earlier quoted context omitted.
Because with the exception of very few tasks like digital art the limitations placed on iOS make it worse. Some tasks are just straight up impossible (e.g compiling code), others are just hampered by things like file management and sandboxing or lack of support for hardware/accessories. Sometimes they can be worked around but often it's an exercise in frustration to do something that would be brain-dead on a desktop…
All I can figure is difference in perspective is because such a large part of the potential of i-devices (or phones and tablets more broadly) for creation involves using them as a tool to get something done in the real world, and/or for the kinds of creative tasks that get overlooked by the hackerspace crowd (running an Instagram, say, involves lots of creation ; tradespeople and home DIYers routinely use phones and…
…as long as they’re sanctioned by the platform owners.