Iterable Staff Data Scientist interview questions

I was contacted on LinkedIn by an internal recruiter. Did an HR screen and was invited to do a timed technical test on CodeSignal. I did not make it past the online technical test but I believe there would have been a tech panel interview next. The questions were mostly about classic machine learning theory. I could have passed it if I had reviewed concepts I've learned before. I have been a data scientist for several years in different companies. I'm not so sure a classical theory test like this filters in effective data scientists. Thus a neutral rating.