Why does anaconda not honoring --nodefroute option in kickstart installation of Red Hat Enterprise Linux 6.6?

Issue

• While configuring 2 different interfaces in a kickstart with one configured as onboot=no, it's gateway is still set in /etc/sysconfig/network thus causing a failure to have network connectivity post-install.
• Here is the relevant portion of our kickstart file:

network --activate --hostname=testserver --device bond0 --ip=192.168.100.200 --gateway=192.168.100.254 --netmask=255.255.255.0 --nameserver=192.168.100.1 --onboot=no --noipv6 --bondslaves=eth0,eth1 --bondopts=mode=active-backup,miimon=100,use_carrier=1 --bootproto=static
network --activate --device eth2 --onboot=yes --noipv6 --bootproto=dhcp --hostname testserver

• After installation, the interface eth2 is up and has an IP plus it received the routers option in the DHCP lease too. So no problem with that.
• However the gateway for bond0 (which is set as onboot=no) has been configured in /etc/sysconfig/network and that is to overriding any other gateway for other interfaces until the GATEWAY= line is commented out and the network service is restarted as seen here:

# cat /etc/sysconfig/network
NETWORKING=yes
HOSTNAME=testserver
#GATEWAY=192.168.100.254
NM_BOND_VLAN_ENABLED=yes

• Even after use of --nodefroute option for bond0 configuration, it's not working as expected.

network --activate --nodefroute --hostname=testserver --device bond0 --ip=192.168.100.200 --gateway=192.168.100.254 --netmask=255.255.255.0 --nameserver=192.168.100.1 --onboot=no --noipv6 --bondslaves=eth0,eth1 --bondopts=mode=active-backup,miimon=100,use_carrier=1 --bootproto=static
network --activate --device eth2 --onboot=yes --noipv6 --bootproto=dhcp --hostname testserver