She is saying that she made around 100k from those sales, but what is reported are just around 30k, so we don't have any data to say otherwise but as always, you can't trust anybody 100%. Also, we need to consider that some of them were acquired couple of years ago, when was the promo of xyz at $0,1 so you can't replicate that every year. Also lot's of xyz one worders have premium price when you register them, so we don't know the acquisition price. Based on my experience, without knowing all the facts, just checking what words she reported and at what prices, I would say she needs around 8-9 months to cover renewals, and 3 months for profit and new acquisitions, but I could be wrong.
Also, regarding some cctlds not reported, you can believe or not, but in some years I have more sales in some cctlds, than the total number of reported sales in that particular cctld at namebio, so not all tlds are reported equally.