The only point in time "known" that Jesus came to inspect and approve the Watch Tower Society was in the 1918/19 period. If one takes that as Present Truth then you have to look at what the WTS was emphasizing at that time. What ever was taught at that time was the only Truth we know Jesus to approve. Therefore any specific claims of the Great Crowd, in those days Great Company, must be held to be true.
Which leads us to THE FINISHED MYSTERY book of 1917. This is directly from that publication and must, by default, be approved by the Lord Jesus Christ himself. The chapter and verse is from the Book of Revelation
5:11 …. Was ten thousand times ten thousand, and thousands of thousands.- The number of the Great Company will apparently exceed one hundred millions.
7:9. After this, I beheld, and lo, a great multitude.— When the Apostle tells us in 2 John 8, "Look to yourselves that ye lose not those things which we have wrought, but that ye receive a full reward," he is teaching that a Heavenly reward may be gained that is not as full as if a course more pleasing to the Heavenly Father is pursued
7: 11 Of all nations, and kindreds, and people, and tongues.— "As the number of the Bride of Christ is to be 144,000, it would be reasonable to think that each number of this class may have 144,000 to look after, as 144,000x144,000 equals 20,736,000,000 (twenty billions seven hundred and thirty-six millions), evidently just about the right number to be cared for— 144,000 would be quite a host for each individual of the Bride class to look after. So we can see the necessity for the work of the Great Company."— Question Meeting. 19:1. [And] after these things.— After the saints are glorified and present ecclesiastical systems are destroyed.
I heard AS IT WERE a great voice of much people.— The Great Company.— Rev. 7:10.
In heaven.— The only heavenly-minded ones remaining on earth.
So there you have it folks. The Great Crowd is heaven bound and therefore it would be best to partake this coming Memorial. I would imagine that Jesus is pissed off enough with the Society, please don't add to His troubles.