Gary, while I hear you and appreciate that we all have great variation in taste buds and what we enjoy, you talking food stereotyping. You might as well all Asian people look alike!
There are so many varieties of each manufacturer who all taste distinctly different from each other. Next you have the fresh made stuff from some eateries (many just get vats of the stuff from Sysco) and the taste of those can be inconsistent depending on the day (usually based on who makes it and how they interpret the recipe). Lastly you have the homemade stuff, and I have yet to find anyone that makes it the same everytime and certainly no one makes a hummus that tastes like anyone else (even if they're trying).
And people do black bean hummus and edamame hummus, as well as other using other foundations. Tzatziki sauce is vastly more consistent by comparison and I'm picky about that in that I find dill destroys it for me. Dill is among the most useless seasons in the universe.