I disagree. They've opened a steady stream of D- and E-ticket attractions in WDW over the past decade or so. Some are the same as CA, some are different, and in at least one case (TSM) they created one ride for both coasts simultaneously.
Some rides may be better there, like IASM, especially with the Nightmare makeover they do each year. Some are not -- like ToT, which is way better here.