Its a healthy attitude.
For the Jedi, the stories might just be the same as before just set several millennia earlier. If people have just played lots of prequel stories on the same subject it could seem a bit dull.
The Sith is different - but this means people shouldn't think the Sith stories are going to be anything like the current dark side stories but just with added Force Lightning.
An interesting question Dexx.
My gut feeling is no. I haven't really seen anything to suggest that generically the standard of Force skill has risen or fallen over the years. Or put another way, move Yoda and Siddious back 4,000 years and they both still would be one of the top (if not the top) Jedi or Sith. (Unless someone can tell me otherwise).
Making templates stronger is largely a redundent process as stronger templates need stronger antagonists. However, they may turn out to be stronger as part of the template tweaking process.
What I intended to mean was that the templates would have different skill sets.