No, France is interesting. China is interesting. Iran is interesting. The U.K. is very interesting. Sweden is the Canada of ancient history. Its like "Yeah Sweden was there but who cares?"
Plenty of people at the time.
Swedish intervention in the Thirty Years War played a vital part in shaping the Europe of today.
The important Baltic trade routes were increasingly dominated by Sweden until Charles XII's death.
If Sweden had made peace after Narva, we wouldn't have Russia as we do today. Access to Baltic ports meant access to the West, which meant it was no longer to be a backwater.
Sweden kicked the ass of every major power around it led by a 15 year old.
Also, the Caroleans were the most bad ass soldiers ever. Most Swedish armies were, but the Caroleans especially so.