The Blade's platforms stuff is so overblown (as per usual).
Stopping to think for a second and it's likely either one of the below or a combination.
1. It's so far out (likely 4-5 years away) that they don't even know the platforms yet, it could be next gen exclusive for all we know by the time it releases. It's years away, they have plenty of time to add a logo and when they do, literally nobody will give a shit about them not adding a platform announcement yesterday, Lol.
2. They're still fighting the FTC in court and don't want to give them any ammo. Blade exclusive is definitely something FTC would cry about.
3. They're still negotiating with Disney on the terms of the deal since it looks like a very early announcement.
I don't believe The Elder Scrolls VI has platforms announced for it, nor did Indiana Jones and Indiana Jones was never even officially announced as exclusive, we only know it is through the court leaks! If Indiana Jones is exclusive, Blade will be too, Disney doesn't care about exclusivity and Indiana Jones is a bigger deal than Blade. Also we have Phil saying he wants all Bethesda titles to be exclusive.
Please Xbox fans. Stop and think for a second before losing your shit, Lol.