I understand your point but time and time again, marketing managers + spec chasers have dictated what engineers and product managers should offer to “be competitive.”
For years the bike industry has chased light weight. I can think of many examples of how that has resulted in recalls or catastrophic failures on products that were “not very fragile” or engineered in the right way to product a safe product. (Stella Azzura stems, Prima 199 bars, many of the 1990s cranksets that were engineered by folks that came from NASA or other parts of the aerospace industry, Campy cranksets, Time pedals, Mavic wheelsets, a few FSA products, a generation of Easton EA90 stem faceplates, etc.)
I don’t mean to imply that chasing light weight will automatically lead to catastrophic failure. I just feel like chasing lightweight adds to the risk factor. On top of that, purchasing light weight from ebay also increases one’s chance of buying light weight counterfeit.
The thing that scares me about light weight and not to expensive TAs is something that I’ve observed first hand: poor thread cutting or rolling and that leading to a TA that loosens enough to be “floppy.”
My brain runs the scenario like this:
loose TA (LTA)
loose wheel (LW)
LTA = LW
LW + bump = nick on TA. (NTA)
NTA = compromised TA (CTA)
CTA + bump = broken TA (BTA)
BTA = injury
injury = JRA.