Because otherwise your comment makes no sense. You can already get satellite data rates (100Mbps on a home plan) equal to or greater than LTE, from ~100 times further (36,000 km altitude Geosynchronous orbit) and the distance itself does not fundamentally limit the speed, but the latency there is terrible and is fundamentally limited. LEO satellite constellations address that.
SpaceX's particularly large constellation (allowing streaming from multiple satellites at a time and with large phased array antennae on both ends) will allow much higher bandwidth than existing satellite internet systems, but the biggest deal about these LEO satellite constellations over GSO satellites is the far lower latency.
SpaceX's particularly large constellation (allowing streaming from multiple satellites at a time and with large phased array antennae on both ends) will allow much higher bandwidth than existing satellite internet systems, but the biggest deal about these LEO satellite constellations over GSO satellites is the far lower latency.