I sympathize strongly with the author. I write with a pen so infrequently (years between handwriting) that I often have handwriting errors that displease me.

So I usually do some practice writing on scratch paper before attempting the final version.

Notice he said "printing the address would have taken less time". That doesn't sound like the issue was formatting or knowledge. It reads to me as the physical skill of penmanship.

How is that possible? I write things literally every day. Everyone I know does so. How do you go a literal year without picking up a pen?