You do realize 2016 was an anomaly with as record-setting for the number of signees in the 1st ten rounds? There had been unsigned 1st rounders every year since the CBA of 2012. Using 2016 as an incriminating example is very misleading. The slot max rules were created because of the Pirates free spending of the past.Just saying. 2 guys out of 300+ didn't sign. Pirates had one of them.
I'm not sure where the 5th lowest spenders originated, but assuming it's true, the Pirates had among the best records in baseball for 3 years after the CBA slot rules, so that alone, coupled with the Appel non-signing, would make it impossible to be in the top half of the list of spenders.
I can understand anti-Pirates the MLB cheap spending rants, but this angle just doesn't make much sense.