if I have 200 reviews, and 10-20 of them are taking me longer than 5 seconds, I would prefer to throw it at the end of the stack instead of guessing and getting it wrong (or guessing and getting it right but not feeling happy about it). I’d rather keep the flow going and spend more time with the hard ones at the end. Then when I get to the end, I can spend 10-30-60 seconds on it and try to make some mental gymnastics to see if the data for it is even in my brain. I know that if it takes me 60 seconds to make the connection then it’s not truly a good recall, but I’d rather put those all together to make the attempt, get it right/wrong, and ignoring it and marking it wrong anyway.
The difference between deliberately getting it wrong quickly to keep the flow going is that I still would like to take 60 seconds, if that’s what it takes, to let my brain make connections so the recall can be faster in the future.