Funny... how so?
sUAS communication with ATC are to be conducted via a web-portal. Not via direct radio comm.
This an easily be found on-line.
Here are the relevant quotes from the official FAA Part 107 Study Guide.....BTW these are from Chapter 7 : Radio Communications Procedures
"Understanding proper radio phraseology and procedures contribute to a pilot’s ability to operate safely and efficiently in the airspace system."
"Although a remote pilot-in-command is not required to communicate with manned aircraft when in the vicinity of a non-towered airport, safety in the National Airspace System requires that remote pilots are familiar with traffic patterns, radio procedures, and radio phraseology."
"For this reason, a remote pilot must always look for other aircraft in the area, and use a radio for an extra layer of situational awareness."
And now for the most important paragraph....
"When operating in the vicinity of any airport, either towered or non-towered, it is important for a remote pilot to understand radio communications of manned aircraft in the area. Although 14 CFR part 107 only requires the remote pilot to receive authorization to operate in certain airport areas, it can be a good operating practice to have a radio that will allow the remote pilot to monitor the appropriate frequencies in the area.
The remote pilot should refrain from transmitting over any active aviation frequency unless there is an emergency situation."
"To close, a remote pilot is not expected to communicate with other aircraft in the vicinity of an airport, and should not do so unless there is an emergency situation. However, in the interest of safety in the NAS, it is important that a remote pilot understands the aviation language and the types of aircraft that can be operating in the same area as a small UA."
So to summarize, Radio Procedures are very important to RPIC. If you are operating in the vicinity of an airport you should have a two way radio capable of monitoring the CTIS/CTAF and refrain from broadcastingexcept in case of emergency. Such as broadcasting a flyaway. Obviously UAS shouldn't be doing pattern work at an airport but in the interest of safety they should absolutely have and be familiar with radio procedures (the latter being a requirement and tested on the 107 exam).
My 2 cents