The transmission was broken when gun powder came out and the industrial revolution changed the economic condition for families. Thus swordmasters and schools no longer had heirs.
Asia had the same issue, but they were too beholden to tradition and genetic line, to ignore the ancestral value.
In general, the HEMA re application of the principles of combat, is a good thing.
In Eastern lineages, a lot of the techniques have lost their meaning, because they were preserved as they were, sorta like ancient scriptures. After enough time has passed, nobody even remembers what it was for. This is seen in Okinawan Karate when it came to Japan and then exported to South Korea as Tae Kwon Do. The ancient South Korean TKD was something else entire.y
Asia had the same issue, but they were too beholden to tradition and genetic line, to ignore the ancestral value.
In general, the HEMA re application of the principles of combat, is a good thing.
In Eastern lineages, a lot of the techniques have lost their meaning, because they were preserved as they were, sorta like ancient scriptures. After enough time has passed, nobody even remembers what it was for. This is seen in Okinawan Karate when it came to Japan and then exported to South Korea as Tae Kwon Do. The ancient South Korean TKD was something else entire.y