It shouldn't. But are the challenges that important? Now that you know how to do them it takes an hour to max something out, tops.
I love when you get a mission wave. "Payday!" "-kshk- Let's get paaaaid. -kshk-"I also played a match with a Volus adept; I was "AWWWW"-ing the entire time. Love their voices too. "{inhale.} Mission received." "{inhale} Losing pressure!" It was like charging into battle with a fat chain-smoker and I loved every second.
The adept is nuts. I'm pretty sure the best thing for your team is to grab the area, the DR and pump biotic orbs up for -60% cooldown, but I love the effect of 3 orbs dropping incremental debuffs on heavy targets. Often, the act of debugging a brute saps most of its health because each orb does incrementally more damage.
Stasis... I have yet to use stasis. It isn't a bubble because I benefit from the extra 38 HP, sue me. But it would be good for biotic explosions, especially with the evolution that increases damage done.
The heavy Melee has a very long duration and can be held like the geth melee, but not pulsed. If you're up front, it's an effective anti husk tactic, and I've also been able to pin full-health marauders and pros in corners, pulsing away their health. They can't recover in time to attack you, but if anything else shoots you you're toast.
And yes, the purpose of the Volus is to boost their allies. They are probably why the Turkana were winning the space war.
From a couple hours' run, recon mine is "better" with daughter damage. I've seen a volus rise up the charts dropping hugely powerful recon mines into enemies, an detonating the lot.
Myself, I prefer the blast radius increase and the invasive scan. Drop a regular proxy, and by the time it's set off whatever is in the scan is taking 45% more damage. Get a volus adept in their and even on platinum you're Melting chumps.
Not that I've gotten very far on platinum. Just far enough to know the collectors hurt.