It would be deliberate, but not so much for strength.

It's just that using hand/basic techniques, a line fold is a lot easier to form in sheet metal, than an accurate small radius bend.
A bit like the side panels - SB press formed these with a raised centre, to add rigidity to light gauge metal. Very hard/time consuming to duplicate by hand.

A very professionally done repro, all the same.


Cheers,
Gadge

"ODK Mods can explain it to you, but they can't understand it for you..."

"Crazy can be medicated, ignorance can be educated - but there is no cure for stupid..."