UBS Quantitative Analyst interview questions

I was approached by an internal recruiter for the aforementioned job position. When I asked about the interview stages she gave a vague reply. Few days later I had about 60 minutes technicals with a member of their quant team; he asked a lot of data analysis and stats questions. Immediately after the interview I received a coding home assignment to complete within 1 week and to email the results to them - this consisted of data analysis of a large dataset and probability related problems. I spent tops 2 hours doing this and proposed to them to present and discuss my results in another interview. HR emailed back that they would inform hiring manager about my proposal, but I didn’t hear anything from them afterwards. The lack of communication shows disrespect for candidates’ time and it seems that the hiring process isn’t clearly defined and takes too long. I feel right that I didn’t email them my code.