A 20,000 reduction in transmission power, yes. A 20,000 reduction in current, no. Current is reduced by not effectively eliminated.
The organisers of the METS show in Amsterdam last November were sufficiently impressed by the product that they officially sanctioned the radar to be used "live" inside the hall, something that is never done at any indoor show. Not sure if the LIBS organisers will allow this or not next week, waits to be seen.
However, as with everything there is a risk, but if you can reduce it to be almost negligible then that is the best one can do.