Veeam Software Software Engineer interview questions

Before having any call you have to do an initial coding test. I was applying for a C++ job which emphasized on strong C++ skills. The test was regular leet code stuff (iterating over strings, sorting, counting, etc.). I had a total score of 89% and then I had the recruiting call. After that they rejected me because of a lack of experience. In my honest opinion this isn't very nice and has zero appreciation. Whats the purpose here for that test, to win an entry ticket?

the interview was quite easy and calm, I was told in detail about the company's capabilities and development. the interviewer was quite attentive to details and answered the questions asked