Doc, it's not that we haven't been explaining it, it's that you're not accepting our explanation. It's not been a "Because we said so" argument.
It's just that you're dealing with more of an abstract argument, and making mountains out of mole hills with it. You're hoping for some lengthy explanation, but it's just not there.
The Guards are as powerful as they are, because their mechanical power is where it needs to be; and in being as powerful as they are, they help to reinforce a setting of dread. Antagonists need to have some meat on their bones to be proper antagonists. Not every antagonist, sure. Some could deliver conflict without lifting a finger. But are we really asking this out of our Vallaki Garda?
It seems to me that the staff, and indeed, many players prefer to have a guard NPC who is capable of implementing physical justice.
It might be that your view of the Vallaki Garda is that they should be weak. It might even be that that's an opinion educated by Ravenloft book lore. But as EO offered, again, there is a significant level creep in this community. The AMPC starting level even had to be adjusted for it, recently. The team can decide to not adjust anything at all relative to the average player level, and see the server become a laughably easy setting-- or they can adjust the general level of NPC's to be as relatively threatening to the playerbase as they would have been without general level creep.
I'm not saying anything new. None of this hasn't already been said in this thread. I'm just not sure that you're reading it-- and I'm not sure if you're accepting that at it's root, central level, this is a decision that the staff has to make based on opinions how to run to persistent world server. You could be as logical as you like, but it's still ultimately a matter of opinion at the end of the day. And it's been made pretty clear that the staff's opinion isn't swaying.