i think you can count on that being the response you get until jay hires a new park manager (assuming they have one now) and puts some serious time/effort into their terrain parks, right now they only have a terrain park because it's an industry standard and they can claim it on their trail maps. otherwise jay could care less about them, they don't use them in any advertising, and in general don't attract park skiers or snowboarders. just look at the lift line and you'll see predominantly powder skis, telemark skis, fishtail snowboards... you get the picture.
maybe with they're new expansion/hotel/indoor water park they will make some other upgrades on the mountain so that you can have fun at jay when the snow isn't great, but until then i'd rather not drive an hour and a half when i could just lap the park at bolton valley