That "meaningful consequence of failure" is just a failure possibility that is distinct from a success possibility.
I'm not sure I understand what you are saying here. If "meaningful consequence for failure" is synonymous with "the opposite of success" then it exists for anything you attempt. Which would make it a meaningless term. Which suggests to me that this is not what the authors intended.
The examples, from that same meaningful consequences paragraph, of not using die rolls are:
1 "walk across an empty room"
2 "order a mug of ale"
Which seem to be examples of things where you just expect them to succeed, not of minor things that could be expected to succeed or not.
I think I get what you're saying here, but it seems like you are translating "Only call for a roll if there is a meaningful consequence for failure" to mean "Only call for a roll if it's something that is not so trivial that you have no doubt they would succeed." But that is not what the words say.
In fact, the two examples in the paragraph, walking across a room and ordering a mug of ale, are better addressed by the first of the two questions, "Is a task so easy and so free of conflict and stress that there should be no chance of failure?" than they are by the statement about meaningful consequences.
I'm looking at the words, and what they literally say is "only call for a roll if there is a meaningful consequence for failure". Those words mean that even if it's something that has a high chance of failure, if the consequences of failing are not meaningful you shouldn't roll. I can't figure out how you are coming up with your interpretation, unless you think the writers said something they did not mean to say.
If the characters are alone and one of them is trying to juggle eight sock balls, which has a high chance of failure in most situations, I'll either say "You succeed", "You fail", or "You decide." It literally does not matter.
If the character is trying to do this to impress an NPC, and failing will worsen the NPC's impression of them, and impressing this particular NPC matters to the game, then I will either say, "You succeed", "You fail", or...if it seems plausible but not probable..."Roll the dice."