This is exactly right.

Nobody has done embedded MCU programming as simple as Arduino. There is so much open source code libraries in the Arduino Ecosystem to do almost anything that much of your programming becomes plug-and-play and accessible to all. You can then ship it as long as your power/performance budgets are met.

A few years ago they went professional with their "Arduino PRO" industrial hardware and a good Cloud IoT platform. Again they gave you a simple software interface to easily program your nodes and add them to your own IoT application/services.

I think Qualcomm has a winner on their hands here if they can encompass all their offerings within the Arduino Software Ecosystem so any hobbyist/maker/developer/professional can easily develop applications/systems.

I think these things are entirely reasonable for a beginner to learn about. It teaches you about the machine, about the very real cost of a UART write. That saves you from inevitably spending hours and days to figure out that too many printf is what's making your program slow.

A beginner should be introduced to the processor, not C++ or python abstractions. Those abstractions are good and useful in the general sense, but you really should be aware of what your abstractions actually do to the physical processor.