Technobabble, mainly from the Berman era, always tended to pull me out of episodes because all the faux science explanations just served to remind me how much what's being said didn't actually matter. By just referring to it as "parasitic ice", it tells me exactly what it is and the episode moves forward without needing to have an android and a blind man wasting airtime explaining in full detail of "parasitic ice".
Part of me admired that they established the threat as cleanly and quickly as they did. But part of me thought it would have been a more effective threat had we learned more about it. Until the line about it getting in your throat, it just seemed like fast-forming ice. Even then, I wondered what made it parasitic, considering it apparently attacks both organic and inorganic material.
I did like that line. Probably best they didn't dwell on it.