Meaning if the computer is air gap then this risk doesn't exist
Absolutely. But very few people actually use properly airgapped computers, and if you have the technical knowledge required to properly airgap a device, then you are almost certainly already aware of the risks of printing a seed phrase over hand writing one and how to mitigate against those risks too.
Makes me wonder how easy it would be to create a bootable Linux disto with nothing but printer drivers so to speak.
No networking but CUPS installed as @ETFbitcoin mentioned AND although driverless printing kind of works, on the rest of the DVD / USB you would have nothing but all the printer drivers you could find. That and a copy of something to generate a seed phrase.
-Dave