If this attack actually works in the wild on reasonably current MCS's you should perhaps consider filing for a patent, if you can find someone to bankroll it (the lawyers to write the patent are expensive, and you need to be prepared to defend it in court if challenged).
AFAIK you have 1 year from publication to file.
Still impressive if not though!
G-lock: As to your question 1), obviously the tip is magnetic. Probably he just used an existing pick handle/shaft and stuck a small magnet to the tip, or similar. You can see how he's using a strip of metal to shield the magnets on one side while manipulating rotors on the other. Note also that he's turning the pick over.
As to the rest of the questions, maybe someone who actually knows MCS well (I don't) could elucidate the different generations/versions?
The ones I've seen have the gates on little plastic discs that aren't on a central spindle. I have a vague memory the speculation was that this prevented some vibration attack against the earlier ones?
By the way, is it just me who is a bit disappointed in EVVA? The oh-so-great key control turns out to be not-so-great... a bunch of guys on Keypicking can produce keys to code with a bunch of magnets and piano wire. Very good guys admittedly
but AFAIK doing the same for say Protec or even the 3KS still requires a sizable budget for toys, and while you can produce copies of them by molding being able to do it to code is far worse since it lets you do a Dayton attack on master key systems.
Then this, which could very well put it below good 25 year old safe lock in terms of time required to NDE without a key. Even if it turns out not to work on newer locks, it still shows that the operating principle in no way makes it immune from the good old Hobbs principle.