So odd that your ‘testing’ of testing tools shows that the ‘testing tools’ don’t really ‘test’. The tools that you use for ‘testing’ can never do the analysis (testing) that you did of the tools themselves. I wish I had done the analysis that you did. I am not envious of the tools.

Check this: https://www.developsense.com/blog/2009/08/testing-vs-checking/