But WDW has other traditional princess meals more "reasonably"

priced. DLR lost their only princess meal about a year ago when Ariel's Grotto closed. I think that's why people are so upset about this. As an add on? Do it or don't. But there are a lot of people waiting for a princess meal to return to DLR and THIS is what they get.
And we did the GF Princess event. There was live entertainment and a doll. There could be more to come on this, but so far doesn't seem like it would stack up.
I think there are a fair number of people who will try this once, but don't see how they'll keep this booked over time. This is a resort with a lot more repeat guests than WDW.