I refute the stawman by saying
Exactly! Their argument is flawed from several directions. Our position isn't "sola scriptura" to being with, but more than that, we do not appose tradition either. Tradition is fine so long as the tradition doesn't contradict either divinely inspired scripture or the conclusions of sound reason.
The church I grew up in takes communion every single time there is a church service. That's their tradition. I do not object to the practice on the basis of the fact that it's a long practiced tradition. Some churches have it associated with Passover and only partake on Easter Sunday. Some churches do it at random intervals, specifically for the purpose of avoiding turning into something more than it aught to be. Other don't do it at all! Right or wrong, the frequency and manner can be considered a tradition within that sect of Christianity and there is no proper argument either for or against their practice that has as it's primary premise the fact that it is a tradition. Any proper argument must be based on objective truth. Whether it's a tradition or not is irrelevant.
It is precisely the objectively true nature of scripture that makes it our doctrinal standard and even that is secondary to the most foundational premise of God's character and the fact that He is the One who authored scripture.