I wouldn't put this in the same category as a "bootleg". Mooreland Street went through all the proper publishing and royalty channels and secured written permission from The Yardbirds. However, Jimmy Page filed (or threatened to file) a lawsuit, claiming that "The Yardbirds" did not own the rights to the recordings, and that *he* was the only person who owned those rights.
Perhaps if Mooreland Street had been a major record label with deep pockets, they could have persevered against the legal action. Instead, they gave up and agreed to cease production.
This is a bootleg. It is listed as such at Discogs and in the Hot Wacks bootleg discography. The audio is transferred from an original Epic LP, with previously bootlegged bonus material added. No one owns the rights to release these recordings but Jimmy Page, and he has always declined to do so, or let anyone else do it.
"It was only available for about 6 weeks or so before Jimmy Page's lawyers came knocking once again and Mooreland Street Records was forced to shut down its distribution of the title." - Hot Wacks