It depends on how the situation affects you and the meaning you seek behind it.
An almost death experience could be enlightening for some people, and traumatic for others. Both people can get kunda arisen or none, depending on each one’s process.
I will be honest. I haven’t tried that meditation for kunda so I am unsure about its efficacy regarding kundalini, but I can tell you what works to me: fire energy, grounding (as in root chakra meaning, not as in eliminating residual energy), and working with meridians and chakras from root to top.
I am more focused on western and Hinduism theories though.
After speaking with people more knowledgeable in chinese energy theories and Taoism (@Middernag) I have found an agreement about the kundalini energy feeling quite similar to yang.
Therefore, it might be enlightening for some people due to their energetic structure, but detrimental to others, who would maybe benefit from a “yin” approach instead. I might be explaining this wrong, so Middernag could maybe correct this.
Kundalini comes from the bottom to the top, not the opposite.
This probably is related to the exercises you are doing, how it is affecting your energy and the entropy surrounding you.