Why would a random small business owner have opinions about DisplayPort vs HDMI...? I do not think that is a very useful benchmark for evaluating technology standards, and it is kind of a conversation killer to use it to avoid engaging with specific technical points people are bringing up in reply to you. This is a technical discussion forum, after all.

By that logic HDMI would never have gotten popular in the first place. No small business owner ever cared about what cable they connect to their TV as long as they have access to it.