Having the two routes there would have this behavior:
- Any traffic destined for 172.16.64.0-67.255 will go to vlan.5
- Any traffic destined for 172.16.68.0-79.255 will go to vlan.19
Now if this is not the desired behavior and you want all traffic destined for 172.168.64.0-79.255 to go to vlan.19, then find the ASBR and remove 172.16.64.0/22 from the export policy.