As is written in the article:
When we announced the referral program in February, our internal planning was based on the Nash Exchange being operational some time in advance of the program’s end.
The community don’t need transparency on the internal processes of the company, as those change frequently as they are improved and the community doesn’t have the operational knowledge needed to make the good contributions.
That said, the reason the 17th was originally chosen was because we planned to cut a version 1 week after the end of the beta with the improvements needed, than 2 weeks of QA and be released with 2 weeks of advance to the end of the program. Two things changed, first we believe that we will need more time of parallel operation for the program to be effective as we have decided to not invest in promoting it while the business is not operational and second still need to implement additional requirements on the platform.
Thank you for your efforts in promoting the program! I hope we will make a much easier job doing so with a strong product.