Me, either, and I like their videos and blog info. But the bit I quoted shows that LR are playing to the crowd rather than actually talking about the engineering of internal lens parts. Any engineer knows that, for example, you can design a part that is perfectly strong in two dimensions but quite weak in the third. This is fine, because it suits the part's role in an assembled device, where it will never encounter a force normal to that third dimension. Then someone comes along (who can't or won't see the wood for the trees), he disassembles the device and finds a part that bends easily in that one dimension between his fingers, and he says it's de facto poor engineering. That's BS.
From what you said above, you may have no time for engineers, but engineering is not about making things unnecessarily strong/heavy/etc.