Steam Machines did some testing years ago with a solid state scrubber (absorbant mounted to a rolled grid - NOT the Micropore ExtendAir cartridges!).
They tested it on the old axial scrubber they had from the SCR prototypes as well as in the annular axial 15.5 scrubber. The results they got were better performance in the axial, less time in the annular axial and far from the 5.4 lbs radial.
So that graph may have some truth to it, however it's worthless without knowing what scrubber was tested in which unit.

Since it has been posted there for a long time my guess would be stock vs their own in a Dolphin. Could well be, as the Dolphin's scrubber isn't insulated.
In the Inspo the results may well be the opposite as the scrubber is insulated and the cartridge mounted with an adapter rather than being in a can that's developed for it. The same I would asume is true for the Meg.