I'd agree that Tania's book is a good tale and inspiring; I don't have any issues about it being poorly written.
In fact, I just reread it last week. I met Tania years ago at Strictly Sail Chicago and was moved to buy the book way back then.
As a writer myself, I resist any temptation to analyze anything I'm reading for knowledge and enjoyment. If there are flaws in her presentation, the story itself more than compensates for them.