Semantic much?
"Latin was originally the default..." has a different meaning than than "Latin was the original default...". As you didn't catch it, the first time you pick something is the original time you picked it. It matters not how many other items you picked before it. E.g. "I originally picked the blue sweater, because it was the warmest." does not indicate that the blue sweater was my first pick, but rather that my first reason for picking it was warmth. Same with Latin. When it was originally picked, it was due to its universal nature.
You are picking around the edges of this thread and coming up with some very weak to nonexistent gotchas. If you would like to take part in the thread, the discussion revolves around whether Latin Mass is beneficial or not.
Again, no that is not the topic. There is no question about whether the Latin Mass can be beneficial. The old Latin language tridentine mass is occasionally used in the modern Catholic Church, and certainly many people prefer it over the "regular" English language mass and are happy it is available to the public. If the argument was whether it was "beneficial", the topic would revolve around removing Tridentine masses from usage entirely.
Rather, the topic was whether we should "restore Latin to the Mass" and make it the standard and default form of worship in the Catholic Church.
My opinion is we should not.