Originally Posted by
Capn Bloggs
All that means is that it has such a "critical" wing that it needs to be flown faster than most to prevent low speed buffet!
IMO strength would have nothing to do with it given we're talking about high altitudes.
I agree that a high turbulence penetration speed in Mach number does not equate directly to airframe strength, that would be rather the case with max penetraionspeed in kts IAS. You can't calculate Lift (which is linked to structural limitations) by purely specifying a Mach number.
Mach limits are Buffet limits.
And regarding entering tubulence with higher speed: I'm not sure your esteemed SLF will really appreciate that feature being bounced around more severely.
To put it more bluntly: This feature might not be a feature, it might be a bug.