The point the GP made was that timing issues weren't a real problem on the rpi thanks to the tools mentioned.

There are different kinds of timing issues.

There's knowing the time, which you can do with something like NTP. That the RPI can manage just fine.

And there's acting with precise timing, eg, if you need to control a mechanism and reliably react on a deadline of a few ms. A RPI doesn't perform well there, which is why 3D printers use microcontrollers instead.

Access to most of the hardware and real-time deterministic behavior. It’s a really great project and lets you twiddle those gpio pins at ridiculous speeds with perfect timing (less than a millisecond).

A PI comes with a whole bunch of great hardware baked in, so if you have one laying around, and want to do some microcontroller stuff, I think it’s a great choice.