> What would you have them publish instead?

The statement that is published places blame, if not accusations of criminal behaviour, on their business partner.

IOW, they already overshared with the intent of damaging the reputation of their business partner.

In my mind, they are already behind; had they released the standard business line "Our relationship with $X has come to an end; we apologise for any inconvenience caused" I wouldn't be so quick to judge them.

But, now I *am judging them, because they clearly felt personally aggrieved by what happened, enough to imply the worst without actually coming out and saying what happened.