For what I know Flynn was (don't know if he
is) an RKC paricularly fond on the snatch test. He's got pretty astonishing numbers to his credit and many of his videos are around his perfomances, that's why I think he emphazises it so much.
That said, I concur with
@Steve Freides that it is not a good workout because, for most, it requires an all out effort not endurable over time, and that's way it's a
test.
As I said, Pat Flynn has a lot of things that are really, really interesting, I'd say the majority of it probably, but other ones are unnecessary. I'd say if you own Enter The Kettlebell (and S&S for the swing variation and the absolute value of the program inside of it), Easy Strength, Mr.
@Geoff Neupert' Kettlebell STRONG! and Mr.
@aciampa's PT manual (which I'm soon gonna open a thread about, and thank you
@Miguel for mentioning it and getting me to know it), you really wouldn't need anything else to train for a
really extensive period of time with kettlebells. Everything else (Flynn's work included) is a welcome addition but not much more than this.
Is it resourceful? Yes, definitely.
Is it necessary? Not even close.
Would I recommend it? Yes, but only after having read the aforementioned publications, Neupert's MKM (if you like complexes - Flynn's work heavily involves them) and Kettlebell burn (I own extreme!, don't know about the others) and ALL the articles in this website. This is particularly true to me and I feel it's a very underutilized tool: there's not only TTC in here, folks, there is a
vast number of programs and/or ideas to program your training around. Let me give you an example for clean and jerk kind of people:
The Ultimate Kettlebell Exercise for Martial Conditioning