So mental, and emotional problems may be the reason for rising numbers:
The number of partakers includes those who mistakenly think that they are anointed. Some who at one point started to partake of the emblems later stopped. Others may have mental or emotional problems that lead them to believe that they will rule with Christ in heaven. Therefore, the number of partakers does not accurately indicate the number of anointed ones left on earth. And the Bible does not state how many will be left at the time that the great tribulation begins
Looking at this new bunch of Governing Body (which got their anointings way pass the cut off date of 1935), then I conclude mental problems must be the main reason for this modern day batch of WT annointeds