With VCSA 6.5a release (2017-02-02) there is no need to use the workaround by altering /etc/hosts file. Either fix suggested by CSvec or GabeGheorghiu is no longer required.
Just download and use VCSA 6.5a for migration and now it goes smoothly right from Stage 1 to Stage 2:
https://my.vmware.com/group/vmware/details?downloadGroup=VC650A&productId=614