Answer to my 100% tools thread

Thanks everybody for the discussion So here's the thing.
I was invited on an interview for a company to do there SEO and they gave me access to their SemRush and said that find us the keyword on which we have not created a blog post before and neither our competitors and they told me that it should be informational not commercial.
So I used the SemRush and found the keyword now here is the thing I relied completely on the SemRush and it was showing that the keyword is informational and then the interviewer typed that keyword in the google and all the SERP's were commercial for that specific keyword.
So here is my point that you can not completely rely on tools.