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canopy footing

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Good morning,
 
I am reviewing a "standard" design of a canopy - a steel-framed structure with two cantilevering columns 14' tall supporting a light "low-pitched V" roof measuring 16'x24' with 12' cantilever. 
 
The engineer used UBC formula 6-2 (Section 1806.8) to justify the adequacy of the footings for the columns - 5'x5'x5' "cubes."  According to the UBC Commentary p. 297, the formulas of UBC 1806.8 are historically applicable to "pole-" or "column-" type footings. 
 
To me, these "cube" footings do not even look right for the subject application.  Any comments on the situation will be highly appreciated.
 
TIA,
 
Steve Gordin SE
Irvine CA