Oracle Sr Data Scientist interview questions

I never considered to work in Oracle as I work in a different industry. One day Oracle approaches me for a good opening. Over the next 2 weeks I got 5 telephone interviews and was given the offer. The 1st was HR general questions, 2nd was the hiring manager introducing his role, strategy and vision (I do not even need to talk...). 3rd and 4th was 2 senior persons in his department talking to me, all are non-technical until the last interview which is again by the hiring manager and is technical. I am very surprised there is no in-person interview.