I like the new system. I agree it makes crowd control less cheezy.
Think its good for DOS 2 especially since the surfaces (thinking mostly of electricity) seem to last a lot longer without 'top up' now so you can focus on attacking them rather than juts re-electrifying a puddle every turn.
Also makes it (a bit) easier to not accidentally disable your whole team by stunning them.
Also, never really knew how much of an impact my bodybuilding or willpower had on my saving throw chance so often didn't stat them as much instead picking up immunity items.