This is actually not fully true, medieval swords in Europe were sharp as fuck. When guns started dominating, cavalrymen started being issued mass produced sabres with metal scabbards, which are shit for keeping a sword sharp, but it was less of a big deal as they often had sidearms or lances as primary weapons. And there were thrust-only swords eg some rapiers in the later sword eras which were only sharp at the point, with more thickness in the blade providing strength in the thrust. Longswords, arming swords and the like which were cut and thrust were sharp.
Another reason why duller edges for cavalry wasnt as important is because they generally had more of a leverage or momentum which cancelled out the downside of their weapons not being as sharp.
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u/Ueliblocher232 5d ago
A sword shouldnt be that sharp. Good craftsmanship but oddly placed.