I am a UK fire-fighter & believe that the use of NDE has its purpose in my job.
I agree with all that has been posted about the fastest route in when life is in imminent danger.
There are probably more occasions where life is not in danger & the options for NDE would have been far more professional.
Any fire-fighter worth his salt will tell you that salvage or damage limitation is basic firemanship & the hallmark of a good fire-fighter. Why make matters worse than they need to be.
Bump keys would be ideal for these lower level incidents & probably the most advantageous skill we could possess would be the knowledge of how to bypass digital push button combination locks, as they are being used in increasing numbers on office doors.
If we didn't think there was a place for this sort of skill, we wouldn't be here on a site like this trying to improve our knowledge & skills.