While Hyperoptic does not even use PON, rather Fibre to a basement of building and the rest is twisted pair of copper feeding each properties! While it is able to offer symmetrical 1Gbps, it is more likely to suffer network congestion if too many people in a building were to subscribe to the 1Gbps package.
I read Hyperoptic used 10G uplink to the building, in which case, obviously this is no worse than XGS-PON.
Well, even if they did use 10G uplink to the building. The problem is that Hyperoptic are using Cat5e cables to feed all of the properties within their buildings.
Now I know I've heard from some in the past saying that Hyperoptic don't just use Cat5e, they use Fibre as well. But the point is that existing old builds with Cat5e need to be upgraded to harness from higher speeds than 1Gbps.
This means Hyperoptic need to redo their work and either replace those Cat5e cables with Fibre drop cables like how Community Fibre do it or upgrade them to Cat6a and above for 10Gbps to work.
This is why you don't see Hyperoptic offering 3Gbps because they simply can't do so without replacing the cables. Even if they were to be able to offer it to few buildings, they will be exposing themselves for not providing Full Fibre to most of their buildings. From a marketing point of view it gives a pretty bad impression. Hyperoptic sneakily try to hide that information from their website, because they know most customers with another altnet provider will not go with them should they know they aren't being fed with Fibre to their door.
Technically GPON could support a symmetrical 1gbps connection, the issue would be the contention would be somewhat higher than XGS.
In most use cases people upload very rarely and in short bursts.. so in reality not many people would ever notice the extra contention?
I hope we will see some higher upload packages at some point at a more reasonable price point.
That's exactly the problem. This is why Openreach 1Gbps FTTP packages are very high in cost, this is to reduce the risk of network contention by preventing too many of the users selecting 1Gbps.
I don't think Openreach will be able to offer cheaper FTTP packages in future unless they upgrade to XGS-PON. This contention issue is a major drawback. It means that customers are in danger of getting degraded speeds for the same 1Gbps package compared to another Altnet provider that supports XGS-PON.
The only way the GPON contention can be minimized is if there are multiple FTTP overbuilds in the same building. So that way more customers are divided into different Altnet providers. But if there is only Openreach FTTP in a given area contention from GPON is much likely to have an impact from higher speeds.