Does anyone felt Bloomberg interview rejection was not fair and left you in confusion?

I had appeared for the phone interview and I felt, I did pretty good in the interview, explained my thought process, covered test cases and edge cases.
Interviewer didn't give me enough time to think, and revisit my idea.
Started giving me hints before I could revise my idea.

Next day I receive a rejection email. Now I am confused what went wrong or what are the expectation from the round?