michaeln:cyril7:
No, the answer is no, the number of moving parts in a HFC network is considerably greater
FibreX: [OLT] ==== fibre ==== [D-CMTS] ---- co-ax ---- [0 or more amps] --- [cable modem]
GPON: [OLT] ==== fibre ==== [splitter] ===== [ONT]
They are both shared, polled, time-division multiplexed systems. There are many similarities, because of course PoN borrowed from Cable, just as DOCSIS 3.1 borrowed from cellular techology.
The biggest difference being that in for GPON the only powered components are at either end, The Vodafone HFC (FibreX) networks involve a lot of powered components with very few backups existing in two cities in NZ with very shaky power networks.
TLDR; Power goes down in a neighboring suburb (You still have power), GPON stays online and working but with HFC there is a decent chance your internet is going down.