ADUM240D0 - connect NIC pin to ground to make pin compatible with ADUM1410?

Hey,

I was wondering what the side effects of ignoring the advice to leave NIC floating on the ADUM240D0 would be? I was hoping to make a pin compatible pad with the ADUM1410, which has pin 10 as CTRL, which I need to tie to ground. 

ADUM240D0 layout

and the ADUM1410 

Thanks!