Sean,
The implication of the reported comments at Gatwick suggests that that is exactly what they were setting up to do. Since this is a new threat, this capability is not deployed, so it is thought that there was a delay as the equipment was brought in.
My personal opinion is that the FCC should not have allowed frequency-hopping (jam resistant) technology to be used on consumer items. I know it has been a boon to the R/C hobby, but we are now reaping what we have sown. Of course, it is further assumed that up to date jamming equipment would have little problem....
For those who are noting the "first drone conviction" in the Great White North, it is my understanding that the FAA convicted over 23 individuals of multiple counts in the USA back in 2016. And presumably at least that many since then, based on the urgency of the government to get the problem under control. And while the fine, upstanding gentlemen residing in Yellowknife is clearly a knucklehead, the USA has more than our fair share.
Dave