Could be. I mentioned that above. However, the replacement product should be then approved before taking it down, which is the case with X-Cess GEN2 API SP. Also, this is specific product aimed strictly at BMW> Now, it could be that Motul is moving everything to one product. They did drop a number of "Specific" products. But do not forget that Castrol, for example, is not planning to discontinue 0W30. Actually, they updated the wording that it is suitable for LL01FE, and it is API SL oil.
Calcium is not an issue if balanced with other additives.
Regardless, I would still go Castrol 0W30.