I think the problems here are
1. People who are quick to judge things just because they are different, or new
2. People not explaining themselves well and just saying "its bad" when they may mean other things.
I myself also think that there is something distasteful IN GENERAL to this whole idea of what Pesach hotels have become. But I think it's a problem in America in general with the chase for luxury in extreme. And when you combine that with the idea of YomTov it can sometimes leave you with a bad taste.
I don't have an issue with people doing things different. Yes, there is something to be said for tradition but as the world evolves we'll always have things changing in different ways to the way things were done.
There are plenty of Pesach programs that are more "heimeish" if you will. And there are plenty of people going to Pesach hotels that are anything but heimish and are still there in the right spirit and I'm sure having a seder just as meaningful as some guy sitting at home.
And as a side note there are plenty of people who can't make Pesach for various reasons and plenty of people who ONLY KEEP pesach because there are Pesach programs etc.
I think the issue I have is more with our GENERAL focus of things that shouldn't be our main focus and this 'chase' for bigger, better, nicer that plagues our society at large. This is just one example of where we see it. So you have people looking at all the ads feeling like this is all wrong.
And then there folks who just think anything done different than what's always been done is "wrong" -