Garmin 650 - Emergency transponder

With everything that has happened over the past week at Mcbride, I took a moment to evaluate my gear - particularly as seen in an emergency situation. I travel with all the gear - avy pack (tested), beacon, probe, shovel, and garmin 650. We in our group have ast-1 training, and do the best we can to plan our trip and understand the snow conditions. However, looking over my gear I paused at my garmin 650. If I or we were in an emergency situation how would I communicate quickly with the outside world to send help? Ok..... Enough. I find it hard to believe that this expensive device does not have the ability to communicate with SAR , similar to the spot device. It does everything else (within reason). I understand it communicates with other garmins, but there is no single "emergency" button. I wish garmin would update their software to include such a button and also develop something similar to the spot, but integrated into the (in my case) 650.
I would be interested in anyone else's thoughts.

It is great that you are going over you equipment and evaluating what it can and cannot do. I have both the spot and garmin 650. It is expensive to have this equipment and yes it would be nice if the 650 could do all but you may be able to communicate your position to someone with a satellite phone.

Garmin 650 and a sat phone here

It would require a monthly subscription which you currently do not need with a gps
But yes if they were all together in one device to would be less items to pack
I could not imagine one device being any more expensive.
I have both the Inreach as well as a rino

I use a garmin 650t and Inreach se. It works good for two way communication. 29.95 a month allows 100 text messages and you also have SOS.