15 Significant Digits Limitation a Mistake for Spatial Information

The IEEE Standard of limiting 15 significant digits of precision is a
practical mistake for Microsoft to follow. Especially for marking Latitude &
Longitude coordinates for geocodes and establishing and storing boundaries
for maps at zoomed levels. Take for instance, a latitude value of
39.729831646409565 in Denver Colorado. Excel only stores it as
39.7298316464095. The longitude of -105.02543449401855 is stored as
-105.025434494018. You loose two significant digits of accuracy for this
spacial information.

Can the decision be reevaluated for practical purposes?
.

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