I know guys in tiger who joined with 500hrs and a self-funded a320
also guys with thousands of hrs on leave from airnz who fly for them.
Think the systemic problems being referred in lcc comes more to the culture engrained by management and their allocation of fair systems to ensure safety incidents are minimized. Such as check and training programs, fatigue, time pressures, finance pressures and systems of maintenance. Even to the number of staff and resources required to achieve a safe outcome. Unfortunately as each corner and cost is cut the reliance on excellent crew to perform the extraordinary, to meet schedules and management targets whicch are impossible.
Experience crew "may" be able to overcome these problems, as e perience can increase productivity and efficiency of the operation, but for how long. They aren't superhuman. Add to this an inexperienced crew tryingto fit into this culture such as what Jetstar an the likes are asking, and well...
Not saying this crew was either experienced or inexperienced or even ifthey were in the wrong. The fact is Casa showed a just cause for the "entire" operation and management have not done enough to, manage, mitigate, control the situation enough to prove they are safe to fly. Think this was a nail in the coffin rather than a sole ingredient in the Casa decision...