Interesting? For that, I thank thee, monsieur. Convenient? Not anywhere near what I was going for, just applying a dash of
"Occam's Razor" to your initial hypothesis.
View attachment 3330208
You state, rather bluntly, that Sire appropriated their name from Squier. And while there is a linguistic angle at work that might make someone…specifically, an English-speaking person…pause and say,
"Hmmm…View attachment 3330135", it's assuming a Korean-language-first company would be attempting some linguistic sleight-of-hand aimed at duping said English-speaking market.
I, on the other hand, offer up that it is a logical spin on the core company's pre-existing name. If they already know the connotations behind the word
"Dame", then it isn't a huge leap to think they're familiar with other, related honorific terms, especially since their language and culture relies much more heavily upon honorifics than current American English.
Sorry if the preponderance of evidence is
"inconvenient" to your hypothesis…
…but not too sorry.