Yadot: From memory, prior to CASA accepting ICUS for ATPL some ex-cadets were faced with the prospect of buying hours in a light aircraft to meet some arbitrary requirement for an ATPL.
I think it didn't CASA long to be persuaded that proper ICUS sectors on commercial RPT operations (where they act as if in command and make all operational decisions under the supervision of a Captain) was far more beneficial than buzzing up and down the coast in a Jabiru for a couple of weeks.
ATPL requirements do not count the "quality" of command hours, merely a number.