Well, I don't think we should save our criticism of this system for several more months, maybe even a year, because the developers are planning to release a wholly different feature to the one we are using now. That is silly.
You're right, the problem stems from the rewards and scoring system. The Antagonist is basically stealing from the Raiders. Antagonists are encouraged to make a match last longer, kill the Raiders a bunch and halt their progress on objectives. These are all the things a Raider needs to score well. This is very arbitrary.
The Antagonist could get points for any number of things or have some actions, like killing Raiders, be weighted more towards their score. There is really absolutely no reason for an Antagonist to take away points from the Raiders in order to score well themselves. Well, except bad design.
Dead By Daylight is a very tempting comparison to use but it is an entirely different genre of game. If the survivors had guns in DBD then it would be a very different experience. But, it is a much better system using a similar play-style, so I see your point.
You made some very good points Nemo and I'm a little surprised I missed such a thoughtful post two months ago. Even more surprised that MSE has yet to comment on any of the things you said.
You should probably take it to the discord server because I am pretty sure MSE doesn't consider the official forums worth their time. Just be wary of the discord, people flip out if you make a good point that isn't theirs.