I was recently on the receiving end of a very perplexing out of office message. It simply said, “I am currently out of the office.” No indication of when they would be back or who to contact in the meantime. Fortunately in my case this was someone I cc’ed on an email as an FYI and did not need any response from, but still–who does that? IMO a good out of office message says how long you’re out and who to contact in the interim if things can’t wait, no more and no less.
I didn’t watch the video, but reading the transcript I got the vibe that the author is one of those people that thinks they are a lot more clever than everyone else does.

Incorporating visuals or GIF images to automated reply messages, you have a greater chance of customers reading your emails and completing the desired call-to-action (CTA).Including visuals or GIF images to the automated email messages makes it interesting and appealing to the recipients. Visuals enhance the description of your messages sent to your customers.6. Personalize your automated messages
Closing Off with a Signature. First and foremost, one of the most common ways you close out a letter formally is by leaving your signature. So, if your letter is actually a hard copy, leaving some space under the end of the letter will be enough for your signature to fit.