The BJJ community is flooded with people who have stupid ideas about strength training.

I just ran into a guy who thinks that shit like stability board work and wall pushups are the best use of strength training time for BJJ.

I don't understand why there is so much ignorance and quackery in a scene that has such a good model as wrestling. Wrestling S&C is pretty extensively studied and staffed. Lots of credentialed people working in collegiate wrestling S&C. BJJ is not very different. Why do people think it is so different? Because they can't abide the idea that "grappling is grappling?" They never wrestled and so they think they are inventing a wheel? There is a reason that wrestlers mop up normal BJJ players--because their coaches knew what the fuck they were doing, and their knowledge was built on top of the knowledge of other coaches who knew what the fuck they were doing. There was no folklore of the "ailing wrestler who succeeded using only technique." Ever.

When people talk about strength development, I think they should speak accurately and in context. And something like stability and coordination work is only ever "the best" thing an athlete could be doing if he already has above average coordination, balance, agility, mobility, cardio, absolute strength, body comp, and relative (body weight) strength. In other words, he is already a rounded and advanced to elite grappler. Not because this stuff is not hard work (it still is), but because it's diminishing returns stuff that competes for time with more important stuff, for people with limited gym time and more pronounced weaknesses.

When someone is not elite, "the best" thing to be working on is always their most underdeveloped crucial attribute, and it's always specific the individual's circumstances, so there is no blanket "best thing." If a grappler has no other major weaknesses in his athleticism (absolute strength, absolute power, power endurance, cardio/metcon, body comp, etc.) then spending extra time striving for "long tail" refinements and little improvements in coordination and balance and isometrics MIGHT make sense.

But then again, superior balance-board abilities might not mean shit when someone comes up against a guy with a 2x-3x BW squat or a 1.5-1.75x BW power clean who is also at the same technical level, not only due to the risk of being ragdolled, but because strength endurance is very much related to absolute strength and power, as they relate to that attribute of one's opponent. If I am stronger than you, then all other things being equal, you tire faster. If an athlete has neglected to work on strength and power training in favor of spending precious gym time on balance boards, he will probably lose, all other things being equal.

So this kind of stuff is a waste of good training economy unless a player is already a very advanced (usually pro) athlete, and the average grappler is better served by eschewing additional balance and coordination tranining unless he has a lot of extra time and recovery capacity to waste. Literally the last thing I would add to a normal person's training program. Dumb as fuck to direct this kind of program at beginners and intermediates.