IXL Learning Product Design interview questions

I submitted my resume to the company online and was contacted the following day about setting up a interview. Later that week, I had a phone interview with a member of their management team. The interviewer asked me to describe some of the items listed towards the top of my resume. I was also asked a brain teaser and given time to ask a few questions about the company. Following that interview, I was given access to their system and asked to complete an assignment on the types of features I would want to add to the site. Less than a week after submitting the assignment, I had a second phone interview with another member of the team. It was very similar to the first interview (i.e., brain teaser, questions about my resume, more information about the company). Overall the interview experience was pleasant and quick. The only odd aspect of the process happened during the second phone interview. The interviewer asked if I was interested in a particular type of task. I responded no, but that I'd be willing to do it if necessary. Then the interviewer made a comment that the position might not be the best fit if I was interested in the types of tasks she described. It seemed as though she was trying to make me uninterested in the position.