Actually, you are wrong, he is not being handed the opportunity to be great. There has been boat loads of research done on sports specialization. Also a great book by Jim Brown, a doctor and PhD.
Study after study shows that the overwhelming majority of elite athletes played more back yard, informal games up until about 12 to develop their overall athletic skills.
Other research shows that about 99% of kids have a 6-7 year span of being able to focus on one sport before losing interest. The best way to raise a great athlete is multi sports growing up, very little parental pushing, and wait until 12 and up to specialize in one sport.
By highlighting and specializing this kid so young, the parents have decreased his chances of succeeding astronomically.
Dr. Brown's research also showed that kids that specialized were advanced until about 12-14. After that, the great overall athletes caught and passed them. A great athlete who starts tennis specialization at 12 will blow away a tennis specialized lesser athlete by the time they both reach maturity.
The last part of the research shows that kids also fatigue mentally with early specialization. By maturity, they are mentally drained and again blown away by a kid who specializes at a later age. Kids that specialize later stick with a sport far longer as they are better able to handle it as they are older.
The book is called Sports Talent by Jim Brown.