Looking at the recipes above, if they’re accurate, you can see that they’re fairly old school. I like that but many beer drinkers have moved on. They were probably cutting edge originally but now they have been overtaken by the Haze Craze, IPA(s), newer hops, etc. The market moves and the brewery must move with it or be passed by.
I think it’s sad due to the nostalgia of the historic brewery, but nostalgia only goes so far and BLUF: sales pay the bills.