If you would definitely give them a call or drop them an email and let them know. It takes knowing the good and bad to make something a success. The last thing this hobby needs is something else going away right now.
The venue, not the event. Deep River is a very cramped site for parking and just overall space, They never change the targets either. Plenty of other nicer venues across the South to have this event. Providence Hill Farm in the Jackson< MS area, is a super venue, but the promoters may not be willing to pay their fee:
https://www.providencehillfarm.com/JR
