Doesn't matter if it has "nothing to do with" the m and v. Only someone with a potato for a brain would actually think that's an a. If people can use upside down v's for a's, then I think I have the right to do so if I choose. The thing is, people are going to have opinions about artistic things that differ from other people's. Therefore, since this is my business, I'm going to make a logo that I like, instead of trying please many individuals, which frankly is pretty much impossible. Guess what? There are some changes I wouldn't mind doing to my aunt's company logo, and she's a professional graphic designer. There will always be opinions.
Now, you might argue that if someone doesn't know what EMV stands for, they might mistake the v as an upside down a. But remember, the main logo doesn't have text, so even if it was lineless, they wouldn't know what the logo is; it's still a vague acronym. The point of the logo is something called "brand recognition", and since it does not contain the business name, it doesn't necessarily need to be easily legible. I'll leave that to the text that says "Ethan Michalicek Visuals". If you were a client and telling me this, I'd change it, of course. But as my own logo, I want to keep the line.
Also, it has a bit of a hidden meaning as well. E and M are my first an last initials, and A happens to be my middle initial. And that line does serve a purpose; it makes the whole logo more symmetrical horizontally.