concensus amoung sports physicians is that young players, with careers in front of them undergo traditional hammy grafts, while guys at the end of careers may opt for LARS as the consequences of a repeat ACL tear aren't as drastic for them.
This is the case - they rarely give young players LARS treatments because if they have a 10 year career in front of them, there is a very high chance that the synthetic ligament will snap at some point.