if you mean EA blocked everyone from making NFL games, then no, EA signed an agreement, they are exclusively licensed to make NFL games. Although that doesn't mean that they're the only ones that can make football games, as there are MANY different leagues.

But as for blocking out competition... when it comes to sports games, does it really matter? the same goons are going to buy the games this year as last year, because one pixel on Doug Flutie (?)'s jersey is different! but no, they aren't unfairly blocking out competition, they likely paid quite a large sum of money for those exclusive rights.