If this was discovered in the 1930s, why haven't others attempted to remove side channel information as they perfected their experiments, even if the original research was not published broadly?
Edit: The article states B.F. skinner did create a box to remove these side-channel effects for rat experiments
And then there's this: https://esoterx.com/2014/12/03/murder-by-math-the-irrational...
There was institutional pushback on Godel's incompleteness from the axiomatic mathematicians that thought they could prove everything as they reconstructed math from axioms (if I understand that). From what I recall reading the axiomatic reconstruction was basically a huge industry of mathematical work, and suddenly some pissant young guy shows up and says "yeah, that not going to end the way you hope".
The mechanism of tenure alone will lead to political grandstanding. If your research is borderline on tenure but some other research completely undermines it, that is millions of lifetime dollars on the line.
See: MOND vs Dark Matter, string theory, etc.
How do we know they haven't?