It's in the same vein as the "co-operative multitasking is best because it forces programmers to write applications correctly" argument which was a mainstay of

It's in the same vein as the "co-operative multitasking is best because it forces programmers to write applications correctly" argument which was a mainstay of the 90s OS wars. People with a little knowledge but not much understanding, arguing in favour of their favourite OS and trying to spin its limitations as actually being a positive. In most cases, they'd have been better off saying "yes, it's not ideal but it's a reasonable trade-off on a small system".