I'm a grad student who's currently in the process of waiting to hear back from a front end developer interview. I interviewed with this company in person last month , and received a take home project a few days later to complete within a week. The project consisted of rebuilding a website from scratch based from images of screens that they had given to me. I sent my project back to the interviewer within the timeframe, and he told me that my project looked good and met all the requirements they wanted. Since submitting my project 3 weeks ago, the interviewer has been telling me that they are waiting to receive projects from other candidates and deliberate among them. As of 2 days ago, he told me that they are still talking to candidates and comparing projects that they received. While they were deliberating, he said he wanted to give me the opportunity to go back and add more to the project that I've created, "to give more life to the page and consider where I could go next with it"
I find it a little weird that they want me to go back now and add more to the project I've given them. I already took one week before to work on the project, and at this point I feel that they are taking my time for granted. It feels like they might be taking advantage of their candidates. Do you think that this is a reasonable thing for an employer to ask or is it a red flag?