All 3 examples have been developed by experienced photographers and represent the best they could get out of Lightroom vs the best they could get out of Iridient. The results speak for themselves.
As you say, posts like these are unfortunately very common now, but in nearly all cases it's experienced Lightroom users having a play with new RAW developers because of the issues with X-Trans Adobe has - so if anything they are far more knowledgeable in Lightroom than the other apps yet still struggle to match the results from the other tools.