I don’t think there’s a single bad Bond film, just a small handful of mediocre ones among many greats. Along the way, though, there have been some decisions taken by the production team which could be considered missteps.
I ask tentatively, then, couldn’t Eon have done something about it at the time?
Take Die Another Day, for example.There were certain things in it which were widely ridiculed (the invisible car, Graves’s Robo-Cop suit at the end, CGI which wasn’t quite advanced yet, etc), yet surely Eon would’ve been aware of these flaws before release? If not, what was responsible for this lapse in judgement? Surely they don’t need us to tell them that an invisible car is a bit … silly? (Though my mum, of all people, thinks that bit is brilliant, so maybe they asked her first).
Another head-scratcher is parts of The World Is Not Enough, most notably, perhaps, the introduction of Renard’s inability to feel pain, which is never developed. (It may have been interesting to see him withstand torture, but that’s a bit more 24 than Bond). Was this an oversight caused by different writers penning different drafts of the script?
The one I most regret is the Tarzan yell in OP, as it’s one second in a film which lasts for two hours and eleven minutes, yet has tarnished it’s reputation. (Mind you, I love Octopussy - it’s my favourite film ever, simply because it’s fun, often surreal, and balances Victorian-style swashbuckling adventure with then-current Cold War paranoia). As the actual yell is a dub, perhaps it was put in very late and couldn’t be removed (?)
There may be other examples, but I’ll leave it to others to offer them.