GW, I use the "paddles" for convenience not emergencies....  when I panic, I run... bugga turning switches off.  It's seldom one has time to think of paddles under an emergency... it's not like hitting the paddle is gonna impersonate a SawStop.   

for a moment I thought you were advocating replacing all with mag-switches till I hit the link and saw what you were referring to. 
I have a number of those "deadman switches" (if you refer to those foot pedals) incorporated in my air vacuuming clamps.  The Fe$tool VAC-SYS has one built in,

and these two I use with my air cups/clamps,

That "poached egg" looking thingo is a remote I can foot operate to turn my vacuum pump on.  This one I tend to use hand operated as it is not a toggle... the pedal needs to be depressed for the seal to stay broken.
I though a "deadman" switch is one you must keep your finger on to keep it operating.

As well as the foot switches, I use a lot of IR remote powerplugs... problem with that is I used to hang it around my neck
(bloody long red lanyard)

and freaked out when I saw how close it got to my blade when I bent over my TS... I now hook it on my pocket  (that's why I wear the nightie... most t-shirts don't pocket)

with an extendable string. Has a magnet glued on so I can attach it to my machinery,

Strictly used for all my dusties... was 30 Aussie shekels for 4 power-points and the remote. 

Tried using Alexa... great for turning things on, but because of the ambient shop machinery noise, she couldn't hear the "OFF" command... or I had to scream so loud, the neighbours all sat down.

Those IVAC seem great, however, I always found they never fit the exact purpose I wanted it for and I wasn't prepared to modify my setups to fit in with their specs.

 

If your first cut is too short... Take the second cut from the longer end... LBD