[EmlynC]

Unfortunately, science isn't the sort of endeavour where anything can resolutely be considered necessary to start with. Arguably there should be some doubt about whether your research will lead to something important else you can't be doing anything novel. There is nonsense in any endeavour and that is why there are layers of ethics committees, reviews and audits within animal research that limits wanton nonsense. The price of any endeavour is that there will be waste — humans cannot help it — it is unfortunate that the waste is at the expense of animal life.

The first article you link to is about the abuse of frequentist statistics, it is not a piece of nonsense primary research (1182327). The article is correct and an interesting read, but not in support of poor use of animal experiments. The second article (8124111) is about clinical research, not pre-clinical animal research although the arguments raised in the article are applicable to pre-clinical research. It is very difficult to find and expose nonsense research!