As I understand it, Callisto Protocol was made by some of the OG Deadspace Devs.
And the entire concept revolves around filling the hole left by Deadspace as EA haven't shown much interest in any new installments.
But overall it came up short as it didn't seem to add anything particular interesting to the format.
From what I have gathered from various YouTubers, it's scratches the itch of Deadspace without being satisfying.
There's just too much nostalgia tied to DS and CPs story isn't interesting enough.