I'm not sure if the policy has changed but I have noticed that several events have listed
4discgolf.com as the tournament web site and the PDGA has allowed that.
I have asked for a formal clarification on the current agreement covering online registration with the PDGA and hope to find out when/if the agreement is set to renew.
Personally I would like to see multiple services allowed by the PDGA rather than one service given an exclusive arrangement. However, should the PDGA decide they would like to continue an exclusive arrangement with a business I would hope that
4DiscGolf.com would be considered a worthy choice by the PDGA board of directors.