I’m not defending their study and I feel like you are trying to argue “sides” rather than trying to understand my point about nuance.
I apologize for assuming that you were defending the study; I figured that was the topic of conversation, after all.
If there is nuance, but it does not apply to this situation, then it is worth saying that this nuance does not apply to this situation--so that I'm less likely to misinterpret what you're saying.