i've used to work in an ISP that sometimes has this static route scheme for vpnv4 services , and the remaining services has eBGP PE-CE . But the interesting thing is doing this same scenario for vrf default , so you have to take care of the "redistribute static" cause you will be redistributing ALL ipv4 static routes(without VRFs), so when using static routes for ipv4 without vrfs , most optimal configuration is using a redistribute static + route-policy or simple issuing the "network x.x.x.x /yy" matching de exact length of that static route in the Rib.
i've used to work in an ISP that sometimes has this static route scheme for vpnv4 services , and the remaining services has eBGP PE-CE . But the interesting thing is doing this same scenario for vrf default , so you have to take care of the "redistribute static" cause you will be redistributing ALL ipv4 static routes(without VRFs), so when using static routes for ipv4 without vrfs , most optimal configuration is using a redistribute static + route-policy or simple issuing the "network x.x.x.x /yy" matching de exact length of that static route in the Rib.