I also think that any connection that is a split speed should have to be advertised everywhere with both speeds at equal size and at every place that speed is mentioned.
the reason that split speeds are used is because the underlying technology is split speed. 2.5 Gbps downstream and 1 Gbps up so the plans were created with that in mind.
The hyperfibre uses a different technology which is symmetrical so those plans are also symmetrical.
