I can personally speak for the florescent light issue mentioned...they wreak havoc from DC to daylight, for hundreds of feet. So I would say no, they aren't taking this too far.
Yes, I'm quoting myself. :lol:
Just want to add that tracking down interference is my "thing". In the past 15 years I've locating over 300 sources of harmful interference. When I first started the big thing was flashing antenna displays (Google it if you don't know what they were), then it slowly turned to spurious cordless phones, then wireless video baby monitors.
The list of devices I can think of real quick (other than the above) are...
Wirelss inventory systems
The ever popular long since not used Nextel BDA's
WILSON BDA'S...AAARRRGGGHHH!!!
Amplified "rabbit ears"
Cheapo TV distribution amps
Neon signs
AVL systems (can't think of the name, but it operated in the 900 MHz)
Now illegal 700MHz wireless mics.
Analog TV station on ch 67, after they were supposed to have abandoned this channel and gone digital (this was probably my longest distance source, over 100 miles away)
Spurious 950 MHz STL
It always amazed me when I tracked it down to a residence how many people would let me in to pinpoint it. I would NEVER let a stranger in my house, maybe I look trustworthy.
A lot of times they would let me keep whatever it was so I have an odd collection of electronics I can't use.