OK, so you're saying that Open Source is "not the same thing" as Free Software and there was a "need to create a new definition for it" to include "stuff that did not fit the Free Software definition". You give the CDDL and the MPL as examples of such stuff.

But if you take a look at the Free Software Foundation's list [0] of Free Software licenses, you will see that it lists both the CDDL and the MPL as Free Software according to the Free Software Definition.

So why should a new definition have been needed to allow these licenses when they are already allowed by the old definition? Maybe you could supply some of that context you were talking about?

[0] https://www.gnu.org/licenses/license-list.en.html

CDDL and MPL were defined as "free" only after a lengthy debate, and remain incompatible with the GPL - which, at the time, was widely considered the gold standard of free licenses. Without OSI as an ideological cover, they would have been ostracized even harder than they were.

> So why should a new definition have been needed to allow these licenses when they are already allowed by the old definition?

Maybe you should ask the founders of OSI? If their work was fundamentally pointless, why did they do it? Because it wasn't pointless, it was seen as necessary to be able to say "we are Good Guys, but not like them dirty GPL hippies".