There's another way to look at some of these perceived problems.

In "All Our Variant Futures" in the supplementary material for Blade Runner:Final Cut, Ridley Scott discussed the debates they had on how many of the mistakes in the film they should fix and whether they should leave some of them alone or at least not fix them as much as they could have. He called them "beloved errors" - things they knew were mistakes but people were so used to them being there that the real mistake would be fixing them.

Maybe these couple of bad line deliveries fall into that category.