"They were illegally not paying tax for years."
Not quite so, was it? The were singled out as the only religious organization that would have to pay such a tax, and the reason how the authorities came up with the figure, was that the WT voluntarily stated how much they had received in private funding. No other religious group was told to come up with their figures, and had the WT followed the others and not given their own figures, they would have not have been taxed. So they were not taxed because they illegally had not done something, but because they wanted to follow the law and state the amount - and THEN they were taxed, as the one and only organization to be so.
And the two accounts you quote from, tell the same story.