Temporal Samples with MotionBlur Disabled

Rendering out EXRs + AOVs for a VFX workflow. Using Deferred rendering because of issues with Path Traced AOVs. Motion Blur is disabled.
I have been using only Spatial samples to ensure crisp Object ID masks but was wondering if introducing Temporal Samples might help with aliasing issues on areas of fine detail/high contrast.

Thoughts? Suggestions?