No good Bond movie is without flaws. NTTD is no exception to that. And if you don’t think that NTTD was a good Bond movie, you have even more reason to nitpick away.
I’ll make a start:
Primo – once again one of the typical Craig era henchmen with not much to say –, his bionic eye is an interesting feature, but it’s all a bit confusing.
First, he loses the eye during the fight with Bond. Script wise, I understand why they didn’t have Bond pick it up and take it with him, but it’s illogic. Even if he’s now a retired secret agent, he surely would have know that this was something that could help him solve a few mysteries.
Second, he’s Blofeld’s eye and ear to the outside world, and it seems a bit inappropriate that this important task should be assigned to a mere henchman. One would expect that this is a job for someone high up in SPECTRE’s food chain, a proper agent. Ergo, Primo should have been among the victims in Cuba.
Third, he’s seems to be a loyal employee as he continues wearing it after Cuba, thus keeping Blofeld informed. But I don’t really understand why he’s even wearing it when he has a job interview to have himself hired by the opposition. Of course, it’s entirely possible that he had orders to infiltrate Safin’s organisation and decided to just get on with the job after Blofeld’s death (money was good, and the old company had gone down the drain, anyway), but that doesn’t explain why he still keeps wearing it…
I happen to know what a real glass eye looks like (a family member has one), and I can tell that this bionic eye is really huge – almost as big as a golf ball – and must be rather uncomfortable to wear (and I’m not even talking about getting it in and out of his eye socket), he must have been happy to get rid of it. One might think that he just couldn’t get an appointment with his ocularist to have new glass eye made and kept wearing it because he didn’t have anything to replace it. But he must have had something, because the eye was carried around by waiters in Cuba, and I didn’t see him wearing an eyepatch.
And yet, he still has it on Safin’s island. He had to – for script reasons (again) – because else, Bond simply would have had to shoot him (just too ordinary) instead of giving him an elaborate “death by Q-gadget”.
Yes, I know, searching for logic in Bond movies is humbug at times, but it would be less fun if we didn’t try every now and then. 
Oh, when Primo looks down the bridge and we get to see the enlarged eye for the first time, does that count as a reference to NSNA’s Jack Petachi’s iris scan? On that occasion, a belated RIP to actor Gavan O’Herlihy, who’s passing away on Sept. 21st hasn’t been mentioned on this site.
