After playing this game since the first second of P-beta i kinda get the feeling your conclusion might not be that far from reality. The bugs are numerous (perfectly normal for a first pass beta) and they will be fixed no doubt. But a 5 star system and a end goal before end of 2014 is 300 billion star systems is not going to happen, unless they are going to copy paste ALLOT of star systems, and **** loads will look the same. If the release date is set in stone, then those corners will be cut.
Errrr..incorrect assumption that going going 5 star to 70 billion visitable systems is a major leap. They did limit to 5 stars on purpose to test their p2p network code for congestion bugs/desyncs.
As for 70 billion stars systems being samey, well you can expect some repetitiveness as in real world, but trust me there're are enough permutations of the params that make up a planet/system that you'll have enough variety.
Consider these (partial) list of params for a planet:
1. Mass
2. Radius
3. Rings (on/off, density, number of rings)
4. Moons (number, radius, size)
5. Atmosphere (density/layers, speed, cloud formation)
6. Surface types (frozen, gas, liquid, earth like,...)
Add some randomisation to the list and you'll realise that the number of possible permutations is mind boggling -- you brain will detect similarity but not sameness. In a sense, that earth-like planet will look similar to Earth but will not be The Earth.