Great analysis you made about the Cruor. From what others mentioned, it seems that while the Cruor is smaller in size then most, it does seem to use it's size more efficiently.
Looking forward to where the story will lead towards!
Concerning the earlier talk about advanced ships needing more crew, it feels a bit odd, as advancements usually cut crew. The crew guidelines also include non-capsueler ships, who need considerably more personnel (especially bridge crew). The T2 on the other hand are specially designed for capsuleers, requiring even less crew (so I'd imagine a tech 2 frig can go by with just the capsuleer)
So crew numbers would be: High (standard ship) > average (capsuleer ship) > minimal (tech 2 ship variant)
Don't know where tech 3 ships would belong, because while they are more advanced, they are also experimental, so might need more crew.