This is a case where one actually has to listen to the YouTube files before making pronouncements.
TycoDogg made a series of carefully recorded comparisons on YouTube between differing 6SN7 tubes utilizing the original Schiit Freya. Overall quality was quite high with noticeable differences shown, during my listening with Sennheiser HD630VB and 650 headphones over Audioquest Dragonfly Red and Jitterbug using my iPad. I used what I learned in retubing my Cary Slp05 preamp, buying Raytheon VT231’s from Brent Jessee. TycoDoggs work is remarkable and I highly recommend his videos to all interested in tube rolling.
In addition, where else can you hear well-recorded performances by JRAD, arguably even more musical than the band they are a tribute to? Got those uninitiated, they are Joe Russo’s Almost Dead, and they are stupendous.