Its really more of an evolution thing:
In 1.0:
I could enter my cabal at will. Blood, no blood, mals, no mals. Its my sacred ground and I was never refused entry.
Those not of my cabal could flee in at will. THat is, go to the guard, type flee. Rinse and repeat and you'd be inside in less than a quarter of a tick. No hiding for you, chump.
Mainly, this was becaues if your standard was taken, it was held inside the enemy cabal. No at the entrance.
I also have access to my cabal healer and everything else in my cabal once I'm inside. I can cure mals if needed - something especially important for Warmasters.
Then 2.0 came along:
Standards are now held at the entrance and cabal members cannot enter while bloodied. At all. Over time this is judged too hard because:
a) Shaman were far too powerful in the start of 2.0 (actually, they are far too powerful now but more-so at the start of 2.0)
Most cabals were a long, long way from town and curse;plague was a killer if you couldn't cure it. Even with some changes, WMs were getting particulary shafted by this.
People in cabals have a cabal healer for a reason - to cure mals. It is pointless for them not to be able to get to it because they got mals fighting (most likely) a cabal enemy.
Thus is was changed so if you had mals you could get in for the purpose of curing.
Then there were the abusers who decided they would poison themselves and hide in their cabal.
Then the Immortals caught the abusers and tore them a new @$$ hole and left their skin hanging outside the cabal as a warning to those who would act like an @$$hat.
Believe me, if you get caught abusing it, I would bet pesos to pounds your cabal life will be over.
The mechanic exists for players to be able to cure. It is a perk of a cabal. It does not exist as a cheap way for someone to hide from you. Now don't get me wrong, healing and grabbing a tick of sleep is probably allowed (will obviously depend on your cabal IMM). Sitting inside for 5 - 10 ticks, IMHO, clearly wouldn't be tolerated.
L-A
PS - I'd be more than happy to see enemeis able to flee into cabals again to eliminate player being able to hide their period. 