Is this topology supported? DCI STP

Requirements:
- DC1 N7K1 and N7K2
- DC2 N7K3 and N7K4
- DCI links N7K1-N7K3 and N7K2-N7K4
- Can't run vPC on DCI links because I need to run some point to point Layer 3 VLANs over those trunks for EIGRP peering. Don't have any more DCI links to move Layer 3 to, so have to work with just two links
- Don't pay attention to STP type, I could use RSTP+ per-vlan or MST, it doesn't matter.
Would this be supported? VLAN 100 lives in Data Center on the left, but I want to extend Layer 2 into Data Center on the right. Will STP actually block VLAN 100 on the vPC-peer link between N7K3 and N7K4?

It's a bad idea to connect DC's on Layer 2:
Layer-2 Network Is a Single Failure Domain
Layer-2 DCI and the infinite wisdom of acmqueue
Stretched Layer-2 Subnets – The Server Engineer Perspective
Busting Layer-2 Data Center Interconnect Myths
Whatever the server admins say, don't believe it's a must.

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