The apologetics article you refer to has an appendix with scans of 2 forms. The 1991 NGO application form and a 2nd form that the article's author pretends is a new ammended application form from 2000. The defense is that this second form caused a problem for the Society causing them to resign. This is nonsense.
The first paragraph in the 1991 form says..
Please note that the assiciation of your NGO with the DPI requires that you provide us with proof of your organisation's ... annual report on its activities related to United Nations Issues.
Every year the Society had to send this report to the UN describing what they had done to PROMOTE UN intersts during the year. The change in tone of the borg towards the UN during this period has been well documented. Further details can be found at JWfacts.org
The second form from 2000 is not a memebrship application at all. It clearly says it is an Accreditation form for existing NGOs to "confirm your currently accredited representatives and/or to authorise newly appointed representatives. ....We require this information in a timely manner in order to update our database directory"
Your apologist source is simply repeating the lies of Paul Gillies and you are emabarrassing yourself by not taking time to read the source you are relying on.