This isn't magic, it's math. If they wanted they could make these WS perform 10% below Relic/magian/mythic across the board, and let you merit them all. That way they would not piss off the relic etc. holders, and still be able to give most weapons a really good WS. They don't have to add a negative spin for every cool thing they add. they just do that to torture you. For some reason SE hates the fan base, and thinks they have to teach us a lesson about "be careful what you wish for" every single time they add something. I personally think it is the work of some crotchety old Coder in the SE basement that gets pissed every time he is asked to add some new thing, so he puts some horrible flaw in every time, and tells the devs that he had do it "to maintain the balances and stuff".

I've actually been trying the excuse out at work myself. IE.

<random stooge in my office> says "hey, why is it that you ordered everyone in the office dual 22" 1080p monitors, and I only get a single 19 inch CRT?".

<I reply> "I had to, to maintain the balance. See... everyone else worked really hard, and they feel like you seeing as well as them is unfair. If you trade out that wireless mouse for an old shitty track ball mouse, I could give you another 19" CRT though.".

Incidentally, people have stopped asking me for a lot of crap at work.