It should be noted that in Rev. 5:12 it says that the Lamb "is worthy to receive the power and riches and wisdom and strength and honor and glory and blessing," but it does not mention proskyne'o as one of them. A similar statement is made in -v. 13- by every creature in heaven and earth in regards to the One sitting on the throne and to the Lamb. Again it does not mention proskyne'o as one of them. It is in v. 14 that it says: "And the four living creatures went saying 'Amen!' and the elders fell down and worshipped."
So, it does not say directly that God and Christ both received worship. If you understand it in a way that both should receive it, that is fine. But v. 14 does not say that Christ received woship, at least not directly.
However we understand who is the object of proskyne'o (worship or obeisance) being done by by elders in v. 14, what is true is that Christ is portrayed as subordinate in the book of Revelation. In the very first verse, it makes a difference between God and Christ by saying that Christ received a "revelation" from God to pass on to "his slaves" the things that must take place. Does God ever need someone to give him a "revelation."? I don't think so! Verses 4 & 5 shows a distinction between "the One who is and who was" and Jesus Christ, the Faithful Witness and the Firstborn from the dead. One can argue that God can be a Witness, but God dead? No! God does not die! Ch. 3:14 talks about Christ being "the beginning of the creation by God." Some oppose the translation "creation by God," but is there really that much difference between saying that Christ is the beginning of the creation of God, or by God? It does not matter! God is the creator, not Christ. Other scriptures show that Christ was the agent of creation of everything else. Christ attributed the creation to God. See previous post. Ch. 5 supplies a vision of the One sitting on the throne and the Lamb subordinately. Ch. 14 gives us another vision where Christ is NOT depicted as the Supreme Being. Ch. 19 again describes the Word as "of God," not God Supreme. And the last chapter of Rev. speaks of the throne of God and of the Lamb. If Jesus was identical to God almighty, why portray him always as subordinate. Never mind holy spirit!. It is not seen anywhere in the throne, or close to it.
Interestingly, Jesus himself applied the word proskyne'o when a slave who owed the king a lot of money asked for mercy, and rendered him worship or obeisance. (Mt. 18:23-35) Some in this forum would like to believe that proskyne'o is rendered only to God, hence, Christ is God. Well, Jesus himself shows us one way we should understand proskyne'o. And to me, Christ is a higher authority than some "scholars" claiming the contrary.