You don't seem like a particularly trustworthy fellow. There's something shifty about you.
I don't know whoever gave you that impression, but whoever it was, do not believe her lies.
Or perhaps that "centuries old battlemaster" just wasn't that good in the grand scheme of things? Or perhaps a reflection of superior Force talent and not necessarily a product of prodigious technical aptitude?
The likelihood is that a notable and ancient battlemaster is going to be an exceptional duelist; being able to dominate somebody of that stature with an inadequate style is a remarkably impressive feat. And yes, of course it's a demonstration of Force talent rather than technical skill if that is what actually happened, and it's a remarkable display of ability either way.
Maul is accredited as high end master of multiple forms
But let's remind ourselves that we know that Maul is a high end master of multiple forms simply because we know that he is a practitioner of Juyo; the focus is not on Maul but the Juyo form itself, and while it does make it seem like Juyo is a relatively advanced form, by no means does anything indicate that it's some kind of spectacular accomplishment to be able to meet the requirements to start learning the form. Do we have any real evidence that being a high end master of multiple forms is all that great in the grand scheme of things, in the face of pretty much nothing suggesting that it was really all that rare or notable for a Jedi to start practising Juyo?
Also can we be sure that being a high end master of multiple forms was a technical requirement for learning Juyo, or simply a practical requirement that the Jedi Order followed? If it's the latter, we can't really say for sure that Maul was a high end master of multiple forms as he obviously wasn't obligated to follow Jedi conventions.
and is consistently referred to as one of the most skilled warriors in Sith history.
As a forum we deal almost exclusively with the most skilled or powerful individuals ever. There's still however a pretty massive variance among that group, and Maul based on all available evidence is right at the lower end of it.
In light of that, your assertions that stalemating Qel-Droma makes one vastly superior to Maul seem pretty empty, especially when there's little to nothing by way of evidence to suggest that that's actually the case.
Please, Ulic has quite easily the greatest demonstration of technical ability we've ever seen from a Jedi or Sith. Being able to compete with a Jedi in a conventional duel without access to superhuman abilities (let alone having had those abilities and then losing them, and not even being in your physical prime or in a position to regularly train) is something that's almost unheard of and the domain of the few truly most skilled warriors in the Galaxy. In Ulic what we have is quite simply the unique union of one of the most powerful Force Users ever (possibly top 30ish?) with one of the most skilled warriors in the grand scheme of things (not limited to just Force Users, which take up a very tiny, insignificant portion of the galactic population). He's quite possibly the single greatest duelist the Jedi or Sith have ever produced.