edited
I think you did not get the real purpose of the verse. Saying that, there is an excellent observation in your part both Philosophically and poetically: "Perhaps hyenas are as sweet as nightingales, and the 'tick and tock' is as timeless as timelessness.". I am not denying that, and I did not in my verse either.
My poetical goal was only to show the contrast, and I use the phrase paradise to describe the lack of contradiction. and if you do not see that, I very much like to see your reaction when you are trapped by a circle of vicious hyenas' " sweetness" and then we could discuss if their sweetness matches the nightingales' one, or perhaps the scientific fact that their viciousness serves a purpose in the overall ecosystem.
Thank you for responding.

Wrong place I responded

Well, any poem that ignites this kind of discussion has real artistic merit, so thank you for the post and for the clarification throughout.

Understood. I have to be honest, your response made me laugh in regards to the hyenas. However, I wonder what grubs think when surrounded by nightingales. Perhaps sweetness is relative.

"I wonder what grubs think when surrounded by nightingales. Perhaps sweetness is relative."
Another excellent point.
This is the purpose of the poem. the contest between the paradise and the paradise lost, the time and the timelessness, no matter how you dice it to where : a nightingale comes as a predator, or even a lamb, because it devours grass.
It is a philosophical question, not a humanitarian one . It is about the contrast between existentialistic way of thinking and platonic view, definite, or relative, as you diced the contrast to miniscule pieces nicely. So the universe is still split.