I dunno, a real "old school" ABC zoo would be quite unique nowadays, how many places have got (say) Bears, Elephants, Kangaroos and Sealions in the UK?
However, if we're just talking the run of the mill obvious species held in numerous other places it would be dull for us aficionados. That's not to say I'd not enjoy visiting a such a collection that if their endeavours continue to be carried out so well, just I might not visit as often as I otherwise would.
However 2, we're not the people who make places viable, Joe Public are and, given the area is starved of zoos, I'm sure they wouldn't mind and whatever happens I wish YWP all the best -it's great to see a place growing so quickly and developing so well from the start.