"I personally value directness, so when someone communicates with me in that way, it deos influence how I perceive them, even subconsciously."
Communication is mind control. The point isn't the words, it is literally trying to get a person to do something. I often point out to people that if you just couldn't see people's lips move then speech would appear like the sci-fi definition of psychic powers. The better a person is at communication the more they will fit their message to the audience to get the action intended. If 'direct' really works then over time it will be used but the fact that direct isn't used often implies strongly that it doesn't work for most people or it has secondary effects that are too negative. Demanding the exception is a pretty big ask especially if your aren't willing to meet half way.
A second aspect here is that while communicating we are developing our thoughts. We need time to tease out our real intentions and filler conversation helps that. Arguing 'they should have just said x from the start' is 20/20 hindsight a lot of the time. Expecting me to come to you with a terse, perfect information drop tailored to your quirks or else you will get annoyed with me is your problem, not the speaker's.
In the end speakers are practicing a really hard skill and the author ignores how hard it is. Learning to listen when someone has a hard time communicating something is also a really hard skill that this article completely ignores. If I could sum this article up it would be 'I want to give up trying to learn how to listen so now it is your fault I don't understand you'.