LMFAO YES IT IS. Alex, the girl he cheated with, is a SUBORDINATE. He is her boss. She could easily go on and say that he coerced and threatened her to do these things with him because he was in a higher position of power in the company and had her job on the line. She could SUE him AND the company for this. It is literally called workplace sexual coercion. It is NOT uncommon for something like this to happen.
Also, their jobs aren't "normal". Their jobs are to be on social media and post videos about them doing various activities. You can't say shit like "never be fireable in the real world" because this is the real world and what they did obviously does not apply to other jobs because again, their jobs are literally to be on social media. Not firing him would literally tarnish the brand they have built up - and basically his entire personality which he has based around his wife, family, and being a yale graduate.
On top of that, there are additional complications such as the misuse of company funds which could have been used for their little dates and trips together which are different legal matter - and not to mention the fact that HIS WIFE IS ALSO LITERALLY AN EMPLOYEE OF THE COMPANY TOO.