I am a firm believer in encouraging strengths and building confidence. I think that is an excellent thing to do for your child especially if they are struggling with something. For example, we have ensured that our son has access to art and sword fighting classes. These are things he's interested in and doesn't have anything to do with reading - which is his struggle.
But I do not subscribe to the "dyslexia is a superpower" school of thought. Do I think that people with dyslexia think differently? Yes. Do I think that people with dyslexia may approach a problem in a unique and different way? Sure.
But I don't think that it's healthy or fair to tell people with dyslexia that they will turn out to be a billionaire or a professional athlete. People with dyslexia are not uber-intelligent. They can be, but just like anyone else, they can be of average intelligence or even below average intelligence.
And I really don't believe that it makes any sense to tell someone who struggles with reading that dyslexia is a "gift." Louisa Moats probably sums this up the best:
Let’s start with the claim that dyslexia – whether mild, moderate, or severe – is a “gift”. This assertion appears grounded in the observation that some people who have trouble learning to read, write, spell or use language become very successful in life. People who have real trouble remembering printed words are said to “see things differently” or have special cognitive powers. Our best science indicates, however, problem-solving and creative abilities are not more dominate because a person has dyslexia. People with dyslexia may be very good at mechanical problem solving, graphic arts, spatial navigation, athletics, or abstract reasoning – or they may not be.
People who succeed in spite of their academic learning difficulties are a marvel – but their talents exist separate from, not because of, their language-based reading, spelling, or writing problems. Those who experience dyslexia often experience anxiety and other affective challenges. We should not assert that dyslexia and giftedness go hand in hand, or that students are better off because they are afflicted with this condition.
See the whole article on the International Dyslexia Association website. And if you don't know who Louisa Moats is, definitely check out her writing (Teaching Reading IS Rocket Science)and presentations - Here is a recent presentation from the PaTTAN Literacy Symposium, but you can just put her name into the search bar on YouTube and there's a host of other options to check out.