Friend, thanks for responding. The Buddha doesn’t mention Dependent Origination in this sutta you reference. Also, here the Buddha is exalting seeing impermanence as above all else. It seems that the Buddha exalts different principles in different contexts.
That said, in SN 56, Setting the Wheel of Dhamma in Motion, the Buddha seems to make clear the way to the final goal is the Eightfold Path:
"The Realized One woke up by understanding the middle way, which gives vision and knowledge, and leads to peace, direct knowledge, awakening, and extinguishment [Nibbana].
And what is that middle way? It is simply this noble eight-fold path, that is: right view, right thought, right speech, right action, right livelihood, right effort, right mindfulness, and right immersion."
On the other hand, dependent origination seems to be included in the Four Noble Truths because in this and other suttas, the Buddha teaches about the origin of suffering, the cessation of suffering, and the path that leads to such cessation. The cessation of suffering seems to be the whole point of the teachings, including DO. So, it seems that DO is of course important, but it’s a part of the Four Noble Truths and Eightfold Path. The simile of the elephant’s footprint Venerable @Akaliko mentions seems on point here.
Another way to look at is perhaps, yes, seeing dependent origination is important, but how does one see dependent origination? It looks like the answer to that question is by developing the Eight Fold Path, which includes developing insight into the Four Noble Truths.
with metta,