I would have to disagree from a very, very technical standpoint. Both have studbooks and although provisional registration is still available the Class I mares and Approved stallions are pretty much a closed set now. Both breeds are newer than say the Trakehner (which have been branded for years) or Hannoverian (which now requires six generations and the brand) but you can pick 'em out of a lineup.
Swedish Warmblood Registry Basics
I heard from my trainer that the Swedish studbook is going to be closed in the near future. She is very gung-ho about Hannoverians and Trakehners as 3-day event horses. (I am a T'bred person myself.)
This "vet" or "ex-vet" is clearly unhinged. Any old racetrack hot walker or any gypsy for that matter could tell you how to change the markings on a horse. Or "doctor" the teeth for that matter. And Rustoleum isn't how.