Jeff -
Curmdgeonliness aside, what the FW article "tests" is the performance of bridle joints, not glue per se. It uses uniformly machined (I presume well qualified "equal" samples) sets of wood components with various fits and glues them up and breaks them after a very short period of time (anything short of a few years under varying reasonable but real climatic conditions is "short")
It shows that if you want good performing bridle joints, machine them accurately and with close fits and tolerances. Within that standard, several glues (adhesives) will work for your bridle joint, at least in the short term.
To test for glue strength, each joint would be prepped for the glue as it was designed to be used. This might include a rougher surface for epoxy (even coarsely sanded) appropriate fillers, (few epoxys perform well in wood bonding "neat"/without fillers because they wood wicks the epoxy away before it sets. Short setting epoxies seldom have as good a bond as long setting epoxies due to the shorter molecular chains. Oily/resinous wood such as Ipe is supposed to be rinsed with lacquer thinner a few times, then a neat coat of epoxy spread and left to thicken slightly, then a fresh batch of epoxy mixed with the correct filler is applied and the work fitted together.
Conversely, hot hide glue should have a hand planed type surface, and fairly close but not starved glue joint. Liquid hide glue works pretty well as the tests show, but IME many are not very resistant to humid weather (for get "wet"). Your source of flake hide glue and its gram strength makes a difference, for liquid hide glue, the source and formulation makes an even bigger difference.
What "aliphatic resin"/"yellow glues" are is very forgiving. They will routinely give excellent joints under less than perfect conditions. They are or can be very water resistant. They may or may not be more durable than other adhesives "depending".
Overview of FPL:
Forest Products Laboratory - Wikipedia
A portal to get you started searching the database, I did not take time to go glue specific.
http://www.fs.fed.us/research/forest-products/