From what I understand, the analogy between CT and MWI is strikingly good. According to Leverage Research, "Connection Theory is composed of five core claims" and it has "two most important claims". This is far fewer than the multitude of ad hoc models used in the standard cognitive science, so Occam FTW. And the predictions are apparently all the same, so, if CT was thought of first, it, according to EY, would have been the preferred model.

You evidently have a very different understanding of "Occam's Razor" to Eliezer.