I seem to recall the NEC saying all splices will be in junction boxes- period. I am also sure thet UL would not list something for use contrary to the NEC.
Now, there is some "wiggle room" in the code as it's applied to manufactured homes; perhaps that is where these connectors are approved for use.
Perhaps we need to quiz UL as to these connectors, and the details of the listing. I know we have several IAEI members out there- perhaps one of you can ask the UL guy at the next meeting?
