I guess the G&L basses, despite being part of Leo's legacy, are not as distinctive as a P, J or MM. Each of those, you can easily identify in a mix. G&L either do the same sorts of things or something else which sounds like a more modern bass, but not one that can be characterised so easily. Maybe that leads to a sense that they aren't as 'landmark' as the previous designs, regardless of the incremental developments like the locking bridge, MFD pickups etc.