Originally posted by Mizukage Yoda
That is the definition of a no limits fallacy.
Relax! I am entitled to have some fun sometimes, I believe.
On a serious note, you need to evolve in your thinking about TOR era powerhouses.
Star Wars is a dynamic world, my peer; filled with surprises. Otherwise, it will be a boring subject.
Their is no reason to underestimate Satele's capabiliites due to the reason that she could not contend with Malgus in a lightsaber duel. Malgus is extremely potent with a lightsaber; he packs lot of brutish strength and sufficient skill to overwhelm competent battlemasters, let alone lesser martial opponents.
If Satele can block lightsaber strike with bare hands; possibilities for her are enormous in near death like situations. Therefore, it is certainly possible that her clash with Sidious may end up in a stalemate. Not to forget that Satele packs enormous strength as well as apparent from her tree feat during a duel.
And we have seen first hand that Sidious isn't the top duelist.