I think it's fair to classify the advantages as "modest" not "huge." Yes, it's cool that sailboats in the middle of the Pacific can get Internet, but the vast majority of Internet users are still connected via fiber or copper. And, arguably, the existence of Starlink could enable governments to cease the rollout of terrestrial Internet, which is a modest drawback to the technology.
I've also seen reports that, as the satellites become overburdened, speeds are pretty variable. Again, not saying it's a net negative, but I just don't think there are "huge advantages" to Starlink.
This is a pretty uncharitable take. Every largish construction company in the country uses StarLink for their many projects where Internet isn't available. Yknow, actually building the country out. It's a game changer.
As someone who worked and briefly lived in subsaharan Africa, I will say that the advantages are huge. Bandwidth alone isn't even the whole story - latency really matters too, another area where Starlink is super helpful compared to say, trying to get fiber punched in west from the southeastern parts of Africa. I have not yet mentioned the benefits of state actors not being able to cut your fiber at sea where nobody can see them.