No compelling reason? you should probably read the docs a bit more. If you don't have any philosophical concerns with systemd, then you will find a lot to love there.
I just re-read some docs, and I still can't see any compelling reasons. I'm not concerned about booting a few seconds faster (I only reboot my servers once every year at most). Regarding memory footprint: that has never been an issue. Binary logfiles are a disadvantage to me.
Binary logs and the amount of new code which these developers are incorrectly assuming will be stable. It is a total disaster in my opinion. I fell in love with using Linux because everything is text files. Binary approaches will only make using linux more cryptic.