Personally, I could easily live without the panic button, but since most other manufacturers here offer it, BMW follows.
As an aside, since I'm driving the i3 more than my GT, I was doing some laundry last night, and then noticed that my GT's alarm was running...it took awhile to figure out what was going on...the remote was in a pocket of my shorts in the machine...once it dried out, it all works, but it took a moment trying to find the silly thing to shut off the alarm! Not sure if it was just the water, or that the tumbling in the washer was mashing the button, but in either case, it survived the washing machine! Not something I'd recommend you try, though. I'm not going to experiment on the i3's remote, but it if happens, I'll let you know the results.
2011 535i x-drive GT, 2014 i3 BEV