[lowbloodsugar]

Your link doesn't provide any evidence that the study was dubious. If anything the counter arguments seem dubious.

[loeg]

I was providing the link as context and a jumping off point for further reading, if you were curious (which is encouraged here). If you're looking for criticisms of Rat Park, I suggest starting with the "Criticisms" section on the Wikipedia article.

[lowbloodsugar]

It was the criticisms section specifically that I found unconvincing.