I think we should be careful of not caricaturing others’ views in an effort to disparage them. I have never seen anyone who believes that they can understand the suttas without the help of commentaries. On the other hand I have seen people pointing out individual cases where they think the commentary is mistaken. Having noticed that in their view the commentary can make mistakes they advocate for not taking everything it says as word of the Bible and apply analysis to each piece of commentary to evaluate if it seems reasonable or not (I believe this is B. Bodhi’s view, with the willingness to give the commentary the benefit of the doubt in most cases).
Maybe the conversation should then be about whether it coyld be agreed upon that the commentary can sometimes be wrong, or if it should be considered as perfectly flawless. Sadhu