Shadowrun is subsystem-heavy - heavy enough that I'm not much of a fan of the game overall (plus, WAY too many dice. I mean I like a D&D fireball or a Champions 10d6 energy blast as much as the next guy but Shadowrun is over the top). But if I was a fan of the deckers (or the mages, or the riggers, or a street samurai maxing out their cyberware, etc), I don't think I'd want to dispense with the relevant subsystems because each of those subsystems is pretty much that archetype's bread and butter. That crunch has a purpose - it's just a purpose for the hardcore players who really like those subsystems and the detail. It's definitely crunch with a purpose.