If that isn't a craptastic policy, I don't know what is. Regardless of what Marriott wants to encourage as preferred communication channels, a variety of communication options should be made available to all, especially to contact hotels directly. It is simply about a hospitality enterprise providing good service.

There are many reasons to support email communication directly to hotels. There may be language barriers between guests and international properties. Some people may want a paper trail. I'm sure this has been discussed ad nauseam, but until property email addresses are more broadly provided on the web site and in related communication, this remains a major gap.