Where exactly are they claiming equal speeds? It seems to me there are too many factors at play in Cellular Service for them to even try to control and manage data to that requirement. Is there a FAQ or link you can point me to?
Think about it, if the vast majority of traffic is downloaded bytes, why would any provider allocate or try to manage 50/50 bandwidth allocation?
Some "unused bandwidth" is probably good, because that means you can accommodate new users or higher traffic that might be dependent on time of day, or in times of local or national emergency... But "never used" bandwidth is wasted bandwidth.
Fiber is a different story. Again, in general, VERY few people upload a significant amount of data. If and when they do, it's infrequent and generally in short bursts. So probabilistic-ally, the upload bandwidth on Fiber for all intents and purposes isn't used at all (when you think about Gbps speeds). We are approximating the situation. It's probably never good to speak in absolutes.
Therefore, speed tests will report practically equal results with Fiber. This also makes sense in another way - that Fiber does not Time Division Multiplex a set number of channels (that's chopped up access to different users in time) like a cellular band of frequencies with a set number of antennas and transponders. Instead, Fiber being optical, I believe modems for the most part "frequency division multiplex", where different signal paths from different users use the same fiber, but use different wavelengths of light energy. If my modem is on wavelength red, and yours is on wavelength violet we can co-exist right? Yet our communications don't collide and they don't compete for transmission resources (except maybe at some central office with super fast interfaces)..
