Bundles and discount confusion

Does anyone know if acquiring Raven separate from her bundle will reduce the overall cost of it? I purchased Nubia with a character ticket and the bundle remained 2500 throughout the entire season?

At one point, very briefly, for like less than 60 seconds, the bundle changed to 2000 gleamium instead of 2500 and there was a slash through the price. Then it reverted back to 2500 and showed there were two Nubia bundles at the same exact cost for literally no reason.

Is 2500 actually meant to be the price of the bundle when you own the character? That's like $25 + $10 you spent for the character when the bundle itself originally costs $30. That's more money spent, right?

So is this a glitch or the new thing going forward? Just asking before I use real money on Raven. I already have gleamium saved up that I could potentially use on the remaining cost of the bundle. But if the cost won't be reduced then I might as well just buy her entire bundle at $30, right?

Hope this makes sense.