it makes sense. My rationale behind putting the NAS on the MGMT and then passing disk space through mounted drives is that I can create any number of VLANs if I want, and give bits and pieces of the NAS drive through the services, without ever having to change my NAS configuration (other than creating the shares I need)
I wanted to just add more storage space to proxmox and distribute it through the services, but considering the prices of NVMe drives, the rock5c with the sata hat was a lot more cost effective since I had 2x 2TB SSD not doing much in my computer.