Hi, it is bogus.  (I am finally back see Tower) I have had a total of three listeners sell off their expensive SS amps (two were Mark Ls that ran over $11,000) for a pair of Oddwatts.  Tube amps are not better or worse that SS ones.  If well designed both will do the job well.  To be sure there some speaker that work better on one kind or the other.  I would not use many tube amps on current hungry speakers and would probably not use SS ones on many of the vintage high sensitivity speakers.  It is sort of like putting gas in a vehicle.  All types will generally work but some may work better in certain vehicles.