Well first off. I would like to be the first to properly rofl at your statement of soldiers not being tanks...Rofl...There, that's done. So why should shades be better dders? Have you not been paying attention? It's because all three of those profs you mentioned have tools which can be tweaked to make up for a lack of damage, or rather, no longer being on the highest end of dealing damage. Shades don't have any real osb's b/c of our rp. Shades are a parasitic organism. We take, and we cause harm in taking. Our nature only further enforces us being true damage dealers. Our very essence, our being, harms others.
Our given tools truly leave no other adaptations for which we can make up for not being extraordinary damage dealers. What you here are asking for is that Shades ask for a completely new toolset. One which benefits team members similarly to how other profs toolsets benefit teams. This is counter to the rp aspect of Shades. Counter to the reason I rolled one, and I'm sure, the reason why many others rolled one.
Shades, Deal, Damage. That is our toolset and why being The Top Damage Dealer should be part of our toolset. We should be the best in the same way docs are the best healers, crats are the best CC users, and enforcers are the best tanks.