Well, for those of us who are completely incompetent at pyraminx and can't one-look it, but like doing BLD, it can be fun to do. But I don't see much point in paying attention to a UWR for it - it's exactly the same as 2x2x2 BLD.
Back in 2010, I did a lot of the Weekly Competition events BLD, just for fun. For pyraminx, I averaged a little over a minute with about 80% accuracy.
And now that I look at those times, I'm pretty sure Charlie's YouTube solve was way faster than anything I could do. I'm therefore now guessing she was probably sub-30 seconds.