There is no reason a bond should be formed by using VLAN subinterfaces from e.g. eth0.
vyos@vyos# set interfaces bonding bond10 member interface ? eth0 eth0.10 eth0.201 eth1 eth2 eth3
It would actually not work at all, thus there is no reason to display those interfaces via completion help
vyos@vyos# commit [ interfaces bonding bond10 ] Can not add interface "eth1.30" to bond, it has a "" assigned! [[interfaces bonding bond10]] failed