If the 142mm thru-axle hub is effectively a modified 135mm hub, then what is the spoke tension balance like? Uneven tension on rear spokes is surely more of an issue than the hub-frame interface or skewer. 145mm QR hubs move the drive-side flange further from the centerline, allowing more even spoke tension. If this isn't the case with the 142mm thru-axle hubs then I cannot see much of a need for them.