VEECCdYKYi Are you referring to the settings menu in Settings > Security and privacy > Exploit protection > Hardened memory allocator? If so, "Disabled" in that menu does not mean that it's disabled globally, but it's showing a list of apps for which you have disabled it for.
If I disable hardened memory allocator for app X, then app X will appear in that list.
VEECCdYKYi Are the hardend memory alloctor feature available for the Tablet?
Yes.