Sure I agree as well. That there are so many resources and tools available to answer these coding challenges that if for whatever reason such a challenge was presented the minimum is to be able to answer thr challenge. Going beyond would be to know when to use such a data structure or its inherent strengths and weaknesses etc.
Which is why I think companies doing less whiteboard interviews and more real world coding tests make more sense. I think one could understand the limitations of a linked list and still use the built in data structures and be really competent.