Nice report from the dutch colleagues, however not a regulatory text and there is no indication that a beyond GS figure is used in any performance calculation.
They do put a finger on the specific lack of guidance in OPS 1.400, however do note that all landing performance data given by manufacturers include a 50ft TCH in their LDR data for inflight calculation whereas the dispatch data required is specified in SUBPART G and requires a 50ft TCH in any case (plus factoring and no wind) except steep approaches. And of course OPS 1.400 has to be seen in accordance to OPS 1.410 which requires a safe TCH to be passed in landing configuration and attitude. Again, no beyond G/S figure.