Fair point, but:
Doctrinal
Horribly broken anyway
Also a brit emplacement
In the case of the pak43 and 17pdr they also both have a huge range to deal with their intended targets, and are both late game units.
But the Bofort already has Brace to save it from artillery. It also comes out soearly its infuriating to spam arty just to take 1 Bofort down, which doesnt end up being much lost for the Brit anyways.
I tried the Bofort a few days ago, put it on a VP and the enemy fell before it. Three mortars? NP Bofort artillery and mortar pit wiped them. Only way the Axis broke through was when they got the whole other side(lots of fuel) and after sending a KT, lots of inf and plus a lot of flanking tanks. And that only worked on the third try. I felt bad for them though. So long for a silly cheap emplacement. Playing was boring too though, mobile Brits are so much more enjoyable.