One important thing to understand it that he wasn’t going to be denied rights. Miranda only means that he must be informed of his rights.
Kinda funny that in 1895 the supreme court ruled that jurors need not be informed of their rights but the later Miranda ruling says that the accused must be informed.
Frankly I think better education is the real answer to this conundrum.
These days, I think you have to inform the suspect of his Miranda rights or everything he says prior to being informed of his right is inadmissible; in certain, circumstances, this can apparently be delayed up to 40 hours but that was news to me. So getting the defendant informed is important.
As for the jury, they should be informed that they sit in judgement on the law as well as on the defendant...