Evidence suggests otherwise........
I'd be willing to accept that Ragnos was moderately impaired, moreso apparently than Jaden fighting through dozens of dark jedi on a nexus and fighting Tavion 5 seconds before he fought Ragnos AND Ragnos had his scepter-sword with him.
But I don't see it as that big of a factor than Bane doesn't still beat him. When the only fight we see someone in is him losing to a child it's not encouraging and the various supposed mitigating factors just make him more difficult to rate highly.
Regardless again, Bane's hype as the Sith'ari is well above any of Ragnos'.