Hmmm, okay. I wish they were a little more transparent about that. At the information session, they mentioned this was for summer 2019 but it’s possible for the offer to be rescinded if the clearance doesn’t pass on time. They made it seem like it wasn’t too likely that an offer is rescinded for that reason. Other factors, yes, but not processing.
Anyway, thank you all for your replies! I will be accepting the other offer by the end of this month and hopefully let you know in a few months when/if I hear back.