At the time, various FOSS luminaries (including rms) signed this -
http://perens.com/Articles/StandTogether.html
Quote:
If you do choose to incorporate GPL code into a program, you will be required to make the entire program Free Software. This is a fair exchange of our code for yours, and one that will continue as you reap the benefit of improvements contributed by the community. However, the legal requirements of the GPL apply only to programs which incorporate some of the GPL-covered code - not to other programs on the same system, and not to the data files that the programs operate upon.
That doesn't sound like 'A GPL'ed program loads your template, making the templated GPL'ed' at all.