Gas hogs and extended deco divers are the folks that need conservative gas plans.
Big tanks and low SAC rates do make some of this moot . . . but the vast majority of people out there diving are diving Al80s. They don't have a thousand dives to get their SAC rates down to mouse levels, and the profiles they dive often aren't shallow. I think this kind of information is very relevant to all divers; what you and I have done is work it out and then just make sure we carry so much gas that it's largely irrelevant It's a very acceptable solution, but not available to everybody.