I do not need the Prophecy to know who Baha'u'llah was CG, that is the key. Prophecy fulfilled is just a bonus of faith, nit necessary for faith in the Person and life of the Messengers and the given Message.
I do not need Bible prophecies to know who Baha'u'llah was either.
Any logical person would know that this is not a good way to determine if Baha'u'llah was the return of Christ, for one simple recon.
Prophecies can be interpreted in various ways to mean various things. The same applies to all Bible verses.
Christians do not believe in Jesus because of the OT prophecies that He fulfilled, they believe in Him because of His person and what he did on His mission from God, and what He said, as depicted in the NT. Why apply a different standard to belief in Baha'u'llah?
Only our hearts can find that gift, and it is 100% a gift. Our own mind holds us back from accepting the gift, that is advice given by Baha'u'llah. (Can offer the quote)
Is it this quote that you were going to offer?
"Be thankful to God for having enabled you to recognize His Cause. Whoever has received this blessing must, prior to his acceptance, have performed some deed which, though he himself was unaware of its character, was ordained by God as a means whereby he has been guided to find and embrace the Truth. As to those who have remained deprived of such a blessing, their acts alone have hindered them from recognizing the truth of this Revelation. We cherish the hope that you, who have attained to this light, will exert your utmost to banish the darkness of superstition and unbelief from the midst of the people. May your deeds proclaim your faith and enable you to lead the erring into the paths of eternal salvation."
(Baha'u'llah, quoted in Shoghi Effendi, The Dawn-Breakers, p. 586)
"As to those who have remained deprived of such a blessing, their acts alone have hindered them from recognizing the truth of this Revelation."
I used to wonder what that meant, but now I think I know what it might mean by "acts." Their acts may very well be the nitpicking about how Baha'u'llah did not fulfill certain prophecies according to
their understanding of those prophecies and
their insistence that they are right about what all the Bible verses mean. Thus it is their own ego that has hindered them from recognizing the truth of this Revelation!