I do agree with you on the tests for a genuine MLM program. I do however point out that many of the MLM scamers have gone ahead to beat the tests you say - yet that doesn't make the legit. They hire people who present themselves to new members as 'successful members', they hire offices in upmarket areas, get registered, e.tc. - yet they remain scams.
I think the ultimate test for a genuine MLM program is looking at its business fundamentals. What does it sell? How does it make its money? What investments is it grounded on... and such questions.
And once you develop uneasy feelings about an MLM program, trust your instincts.
At the end of it all, there are some legit MLMs out there, but they are few and far apart.
Thanks for your tips though, and that video link.