> I'm not sure that's justified, at all. The domains are harder to experiment in - so the standards are more fitting for their domain.

Not taking sides here, but I want to point out that there is a distinction between rigor in reasoning and diligence in testing (given feasibility constraints). The true answer need not be in the space of hypotheses that's feasible to test [1]. It's crucial that scientists appreciate that; sloppy reasoning tends to make strong conclusions from weak tests because there's a desire (bias) to emphatically drive outcomes even from weak conclusions.

[1] https://en.wikipedia.org/wiki/Streetlight_effect