That is all correct in my mind. I suppose it goes for that I bought 10 seeds that were produced from 2 Dionaea 'Dingley's giant', but since there plants were cross pollinated, the seedlings could end up as different from each other as chalk and cheese. I don't mind - maybe I could get a nice red variation, while its sibling is greener. Likewise, one could have long petioles while the other has short petioles.
Plus I can't really call them 'Dingley's giant' as they are not clones. However, when I think about it, surely for 'Dingley's giant', all plants are the same, as they had to be propagated vegetively, so therefore while 2 'Dingley's giant' plants were cross pollinated, all 'Dingley's giants' are the same, therefore the produce will have not much variation. But they still can't be called 'Dingley's giants'!
Yes, it is quite confusing.