Searchable encryption trades privacy for efficiency. However, the privacy loss can be tuned. For example, SE constructions will specify whether they leak search-pattern (how many of the same queries a client makes), access-pattern (the frequencies with which different items are accessed) or other things. Usually, a client can pay in storage/bandwidth to mitigate these leakages.

Yeah, I've been looking for more information and I can't really see any indication as to how they are planning on implementing it. The whole thing seems more like marketing than actual innovation: searching encrypted data isn't that complicated if you are always dealing with the entire ciphertext, it's just another string in that use case.