it can work separately without bundling with singtel fibre broadband plan, 2 fibre ports of the FTP will be utilised for different ISP.
the only biatch is starhub cable tv.........die die cannot standalone
I believe we need to be fair to Starhub because of the history.
Here are my thoughts, may not be totally correct as I am not an insider and I am not an expert in this area.
SingTel Mio TV started in the ADSL days and used VLan to combine Internet and IPTV and voice in the same media. They continue this setup when going to Fibre. Good thing is that you do not need to use different ONT ports. Bad thing is that you need a VLan enabled router to go with the ONT. To make things easier for SingTel, they start to offer ONR to new users so that users can use any router but as AP only. This causes a lot of complaints to more technical savvy customers who want to use their high end routers.
You could subscribe to Mio TV last time even if you were using Starhub Cable Online since they could just offer you an ADSL modem for your Mio TV. Now you can subscribe to SingTel TV even though your are using other ISP for internet. No extra charges. So SingTel is good in this aspect.
Starhub Cable TV and Cable Online use Cable Infrastructure. When migrating to Fibre, they probably made a decision which inconvenient the Fibre TV users but make the life of Fibre Internet users easier -- no need Vlan for them, so you can us your own router with Starhub Fibre Internet. Downside is that you need to use a different ONT port for the Fibre TV. Vlan support is needed if you want to use Internet along with the Fibre TV.
On the other hand, Starhub is charging customers Fibre Link Access fee if customer only subscribes to Fibre TV, that is probably not a good decision. Previously you just pay for the Cable TV if you are using other ISPs for Internet.