The 3 point shot is way overrated and it leads to long rebounds and bad transition defense. Something Earl Watson talked about the Jazz being so bad at for so many years. We need to limit that from happening.
That doesn't make any sense but I can't find opponent/defensive transition stats to give my philosophical point statistical teeth.
But I'll continue anyway. Any person shooting a 3 (or spotting up for one) is in BETTER position for transition defense because they're CLOSER to the other team's basket. Additionally, long rebounds take opportunities from the defense to grab a fundamental rebound and gives the offense a better chance to grab a rebound (if we're to indulge the 'long rebounds' argument). If you have everyone on offense closer to the basket and shooting closer to the basket, you not only destroy your ability to run a well-spaced set, the defense also has shorter balls to box out and grab, and there are less people back to stop an outlet pass and subsequent cherry-picked/leaked out point.
The 3-point shot is and has been continually trending because it's ABSOLUTELY PARAMOUNT to play good basketball. The only thing Sloan doesn't like about the 3 is when people that have no business shooting it shoot it too much, and CORNER 3s because of the argument you mentioned. The only shot your argument applies to is the
corner 3. It's hardly a coincidence that the five teams that average the most 3-pt shot ATTEMPTS per game have a combined winning percentage of 62.5% and the five teams that average the least 3-pt shot attempts per game have a combined winning percentage of 42%. And that's not an anomaly for this season, you can go down the line through at least the last few years.
Now, that's not to say that you should hoist every 3 you can, but it does say that if you have the personnel and the shot, it's good to take it.
Getting more back to the point, Memo's case is interesting. While he is one of the only reliable shooters on this team (or at least, that HAS been the case), he's also not really in a position to get back on D because he's a snail. It seems obvious to me that having Memo constantly on the perimeter in the past (and not being fast enough to stop anything in transition) and having Brewer constantly inside (and not having good position to defend in transition, besides that he was awful at it), can account for a lot of the Jazz's improved transition defense. However, having Memo on the perimeter doesn't make the transition D worse by itself, it could actually only make it better (which also means you sacrifice other things, like offensive rebounding).
In conclusion, the 3-pt shot is not overrated at all if you can make them. I would argue it's underrated in that context, and Memo changes the context (if he comes back healthy). </tangent>
Addressing the core/initial subject, again, I think Memo will help the defensive rebounding and not the offensive.