I guess that could be argued, but me posting the quote is not pressuring him to believe in God. It's not saying you must believe in God or anything threatening.
You may be correct, and, please don't think me argumentative.
I find that it is more important to flesh out, and perfect the question, than to start hunting an answer prematurely, and possibly fruitlessly. Often, the real issue is obfuscated by the asking of an indeterminate question.
As for your particular difficulty:
For many who are professed athiests, their conviction stems from observation and analysis, and possibly rational discourse.
To have a conversation or debate with such a one, coming from the premise that there is a god, can be maddening to them.
I would liken this to the assertion that there is another letter in the english alphabet, between K and L, called "glutergork".
It is this letter that accounts for all that is done with language. Without it, language and alphabet could not exist. This letter "created" alphabet and language alike. It is present in every single word in the english language, and shapes every word's definition and pronunciation. "GLUTERGORK IS REAL! ACCEPT GLUTERGORK OR BE MUTE AND DEAF!"
Oh, and, glutergork is invisible and does not occupy space, and there is no sound, lack of sound, or change of sound associated with it's presence.
In the instance you have described, there are any number of explanations for his words and actions, some benign, and some not so. Perhaps he had a bad day, and was feeling pressures we cannot glimpse.
Time has a way of showing us the error and extremism of our ways. Let us hope that this person has just such an epiphany.
Either way...
May you be well.