As long, as you are able to set up two separate iscsi sessions, which are bount to two separate paths - multipath driver will handle the rest.
As I understand, Yaniv is talking about iscsi bonding, which is a bit more broad sort of multipath (per description - https://www.ovirt.org/documentation/admin-guide/chap-Storage/) - it creates all possible paths between all possible initiators and targets within bond. Personally, I don't think it's necessary - it's always better to control the connections the way you described - two vlans, each vlan contains one server NIC and one storage NIC, that's it.