The problem is that the SATA connector doesn't spec those added elements, it's an addition that's had to be done in order to combat the inherent physical design omission.
To be fair, it's actually more the drive side connector that's the issue; there's insufficient physical restraint with standard tolerances to avoid the contacts themselves becoming a load bearing element.
For tray/slot loaded drives it's a beautiful connector; for cabled connections I find myself cable-tie suspending the leads to minimise the sag (yes, the right-angle connectors solve this nicely thankfully!)
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