They Should Use Diamond Blocks instead of Gold Blocks in Ocean Monuments

I believe if they replaced the 4 gold blocks in ocean monuments with 4 diamond blocks, it'll help make the Ocean Monuments even more worth venturing into. I don't really believe a trim, sponges and sniffer eggs would help with this at all. So I figured since diamonds are required more then ever to help make copies of trims, diamond blocks would really be helpful and make the structure more valuable and useful.