I think the potential comptetitors in this business (low latency satellite internet megaconstellation) missed their opportunity.

Starship is very close to being able to put next gen Starlink satellites into orbit ("very close" as in most likely within a year or so). Once that happens, it's over, there will not be competition for at least a decade. Before Bezos and others (and/or EU/China) build their own Starship copies (and if you've seen recent EU/China concepts, you can't call it anything else...), it's going to be the 2030s.

Not to mention that the existing Starlink fleet is about to be old technology. The larger satellites launched by Starship is projected to dwarf the terminal speed available now (gigabit+ downlinks to consumer dishes).

I don't think so.

Listen to the most recent RKLB earnings call. Constellation on the way, Neutron launching in 2025. There will be competition.