"Sorry, No. This is the 'New Earth' version of the Legion."
Which is in fact the same Legion shown after Crisis.
"The Original Legion was from Silver Age Earth 1 and that Earth nolonger exists. "
No silly, that was retconned to be a Pocket Universe, all the while Legion was existing on ( New ) Earth. Unless you mean the SW6 Legion, they might have been from Earth-1
"And, instead of trying to make it closer to the Original, they intentionally make it more and more different"
I like how THEY make fun of themselves in making a up a silly brd game outlining the important stories from the Legion's past, although it was very frustrating trying to find a 6 sided dice and having to restart every once in awhile. It kept giving me sense of De Ja vu...
One of the things that bugged me was how they expected me to take them serious about Shrinking Violet, for example, she was kidnapped BEFORE The Great Darkness Saga yet the story took place revealing it almost a year later..WTF!?
"The entire 'Conspiracy' storyline happened after the first major retcon to LSH history (the 'Pocket Universe' storyline). So, No it did not happen to the Original Legion and is not a restoration of the Original Legion's history."
Back then it was called a RETCON. Plain and simple. Retcons werent sweeping changes creating "new versions" they were changes revealed to have been in place all along.
"Hi I'm Superman, I'm pretty popular. I've been around for such a long time and it seems every couple of months I remember things I never told you before... like for instance it just occured to me after being around for 10 years that I was also known as Superboy...and I had all these adventures before I became Superman!" --Superman, 1949, 10 years after his first appearance.
Poor kid would never had made it if the internet was around back then.