EPAM Systems .NET Full Stack Developer interview questions

1st round of interview with Talent Acquisition Specialist with explanation of the project and job roles 2nd round of interview with Technical interviewer asking broad questions such as .NET, ACID database, leadership style, production issues, agile, and asked to write code on how to retry SQL connection for 3 times if failed or exceptions. Overall taken 1.5 hours for this interview and they tried to ask all the questions within this period to test your skills because there is no right or wrong. In the end no offer because they said their clients want someone who has experience in React but why interview me in the first place and wasting everyone's time?