For fear of being officious, I'll be short with this. If you don't see my point or agree, well, cheers then.
The Blitz clearly had a larger scale than either Basra or Helmand. However, the guard has changed several times in the last 70 years. Furthermore, those were military munitions--which are vastly different than suspicious packages and improvised explosive devices (IEDs). Yes, there are fundamentals that invariably passed down as part of modern British bomb squads' birthright, but I wouldn't get carried away with the association.
NI, Basra and Helmand were different and more modern animals. While not as busy as the Blitz, ritish military bomb squads faced plenty of IEDs. Especially in Basra and Helmand, these were often concealed or disguised. They had to identify, approach, assess and deal with them. IEDs are never exactly the same; they tend to vary quite a bit. There were to manuals available to tell you exactly what it was and how to deal with it as there were for German bombs.
I get your point that the Blitz was formative and still evident in British bomb teams. There's no arguing that, but your argument just ignores too much.
This is something I've researched and dealt with in my professional life. So yes, I am being serious. If you still reject my conclusion, no worries. We both have bigger fish to fry than this argument.