That was only for this recent application period because of COVID. They have now reverted back to requiring the HESI for future applications, as well as adding the TEAS as an alternative to the HESI.
I, for one, am so happy they added the TEAS! I have already taken the TEAS and SMU was the only school that I am applying to that required the HESI, so when they didn't require it, I jumped on applying this period. Now I don't have to pay to take the HESI (which I was too lazy and too poor to consider taking), LOL.