Two sides of the BJJ coin
We should never lose sight of the idea that BJJ is a martial art. The original idea was to develop a method of self defence via physical control through deep understanding leverage and bio-mechanics. As far as self defence goes, we cannot afford to neglect rock-solid BJJ fundamentals ... fundamentals such as positional control, correct and tactical use of weight and solid finishing skills. These aspects of BJJ, and others, are of more use in 'real world' self defence than a berimbolo or deep half guard sweep; which have little or nothing to do with 'real world' self defence.
I am not sitting in judgement as to which side of the coin holds morte value - they are both important; one is more akin to high-end algebraic equations that are used to describe abstract mathematical concepts; while the other is like having a head for basic math that can be applied on the spot while buying our groceries.
I think we need a balance - as we do in all things. We should perhaps consider making a clearer distinction between the sporting and combative faces of the art we all love ...