*ignore previous post*
I wouldn't worry too much about the consequences of a flap-related failure being inhibited...have a look at your IAS as you pass 1500'aal, following a retraction at 1000'. It isn't much greater, on a FLEX & CONF 1+F TO you don't get anywhere near VFE until close to 2000aal with an accel alt of 1000'.
In the event of a lock/failure the flaps/slats need engineering attention anyway so a minor overspeed isn't going to cause a huge problem, and there are no essential immediate actions required in the event of a Flaps/Slats lock/failure which couldn't wait until above 1500' at the very earliest (which is only seconds later in any case).