Nobody, as I recall, suggested that the concept would not work, but there were assertions that monitoring time to speed would be vert difficult to include in the process at a very busy time for the flight crew. I am not convinced that something along these lines would not be possible.
In the age of ADS-B, where pretty well every commercial aircraft on the runway broadcasts its velocity twice every second and acceleration can be readily derived, I'm surprised that the possibility of an externally-monitored safety-net isn't being considered.