So big broadcast uses this standard called MOS to interoperate between say a video server and a switcher. I've always thought REST would be entirely appropriate

So big broadcast uses this standard called MOS to interoperate between say a video server and a switcher. I've always thought REST would be entirely appropriate, since they're simply exchanging messages. I'm wondering if you have any insight into SOAP vs REST in this situation. I mean would SOAP provide some level of confidence in message transmission that REST would not?