Well, it's actually much worse than that. We expect disagreement in science on the interpretation of data. What we don't expect is disagreement about actual measurements, especially not for something as basic as temperature. It's not like the disagreement here is about the output of a particle accelerator, it's literally about "what was the temperature in the recent past" which should be well beyond any controversy or disagreement.
The problem with our societies approach to climatology is anyone who scratches the surface of this field sees problematic practices, but the moment they try and talk about it legions of what can only be described as true believers attack them and do everything they can to shut them down and destroy them completely. Our societies discussion about climate has become totally unhinged. You now see important people who seem to literally believe the world will end in just a few years or decades. There's absolutely no reason to believe this, yet any attempt to bring the discussion back down to earth via actual scientific discussion is attacked as "denialism".