But MC isn't console exclusive nor is the content being held out. Not sure where you are going with this?
The content is, and shall ever be.
And this is not only okay, it is in line with literally decades of console policy.
EDIT:
Here, look at it this way. Nintendo cut the blood and gore content from Mortal Kombat because they deemed it to not be in line with their company's, and thus their console's image's best interests. This was a choice made at the highest levels, irrespective of the loud consumer complaints. And Nintendo had every right to make that choice.
The new MC content is being packaged in a way that is untenable to Sony. So they are opting not to partake of it, on their system, much as Nintendo opted out of the blood content in MK. Time will tell if Sony sees similar finacial fallout over their decision.