The funny thing is: It's not as wrong as the architecture of late 1980s IBM-compatible personal computers would have one believe.
Examples:
On a 1980s #BBCMicro home computer with a Second Processor, the I/O processor was the primary boot processor and responsible for initializing the CPU. On a modern #RaspberryPi the GPU initializes and boots the CPU.
On many Big Iron systems there was a Console Processor, not even merely a graphics co-processor but a fully-fledged personal computer, that instructed the central processor; and I/O Processors for DASDs and stuff.
Even the Transputer architecture was designed to have a single front-end processor that would load the initial code into and boot the other processors.
And then there's the very important 80486 running Minix inside some PC architecture chipsets. (-:
