It makes sense. NWS has to concur if video evidence is there, but with no damage off of which to make a wind speed estimation, an EFU is reasonable.
Rant warning-
The whole visual confirmation thing is a sensitive subject to me. A few years ago, we had a storm roll into Huntington in which IWX issued an SPS for small hail. The radar signature did show some weak, broad rotation. I wasn't expecting anything so I did not have a camera with me (flip phone only back then). As I set up to watch it roll through from the south side of the cell, a concentrated area of straight line winds appeared (based on debris and tree motion) with a vortex embedded within it. I had not ever witnessed that before even though I've seen a few tornadoes. I observed as insulation and sheet metal from a nearby warehouse roof was deposited around the top of a cell phone tower and could see it not being carried straight forward, but rotating as it was lifted from about 20-25' up to at least 90' when it hit the tower. Upon reporting it to NWS, my report was met with skepticism but they agreed to do a survey.
The WCM himself conducted the survey the next day and was accompanied by a hydrologist from their office and myself. Don't ask me why about the hydrologist, because I don't know. I am not a met and have had no formal training, however, while inspecting the damage path, I noticed a narrow area of what appeared to be convergence within a larger area of divergence which would coincide with what I witnessed. Most of the damage was tree damage although a multiple structures were also affected. The damage path varied from 50 to 200' wide. However, the WCM determined straight line wind damage even though I witnessed the rotation. He was the pro and I was not, so I didn't raise too big of a stink about it, but I let him know that I disagreed with his determination. I'm not Joe Blow from the general public.
Disclaimer: The WCM and I continue to have a good working relationship which is very important in my profession.
I learned my lesson. My dash cam is always on, my phone is always by my side, as well as a Handycam in my vehicle. Sorry for the rant, but that has stuck in my craw ever since and I had to let it out.