I don't know why you think you'll get hate. Disney might get hate but not an individual fan. There are a lot of us that hate, hate and hate some more, the loss of Rivers and TSI, but at the same time hope that since it is a great loss to us we expect that what is going to replace it will be top notch and worth the sacrifice. If it turns out to be a mess and not worthy of it's location, that's when you will really see the hate. It is a big challenge for the Disney planners, lets hope they are up to it this time.
In the meantime it is better to just hope for the best and accept that it is way to late to change the plans. The river is gone and it ain't coming back. No amount of whining will change that, so lets just hope they are up to the challenge.