Exactly this. If we say looking at past data and trends and then projecting forward is not scientific, then basically climate science has to be added to that. In fact a huge chunk of science would be null and void and science would be labelled as a religion. Nothing about the singularity is non scientific, it is all based on observation and identifying trends and patterns in that data. If it weren't such an incredulous impact on our lives, no one would question it since the science is actually pretty clear and only the exact timing is really unclear.