Good job
@James D. Fawkes you captured the feeling of overwhelming power causing despair in Taylor and how she flashes back to Behemoth and Scion from it. But here is my question: Why isn't she remembering the Leviathan fight as well?
Others have weighed in, but I'll throw my hat in.
The Leviathan fight for Skitter wasn't her fighting against him directly. She was doing mostly search and rescue and recon, iirc, as nothing she could do with her powers would amount to anything. There is but one moment where she goes after Leviathan, armed with what is now Last Resort (not the same knife I believe). At that time, no one knew the Endbringers were sandbagging, and so her desperate attack might have been something that might actually work.
For the Behemoth fight, she was trying to organize things and stop the fight from getting even worse. There was nearly an entire nation's capes plus a ton of the New Protectorate there to stop the devastation, and even something that had a near possibility of deleting any other end bringer just made things worse. Behemoth was completely untouchable and had stopped sandbagging. It stood in the crater of New Delhi, and they threw every big plan and contingency they had - and even when, combined with everything else, they had a shot at killing him - Behemoth just no-sold the power responsible for threatening its core.
The Leviathan fight was looking at something that might have once been human, a personified force of nature that might die if you hurt it enough.
The Behemoth fight was knowing you were facing an unfeeling engine of destruction, and
nothing and no one, not even with everyone working together, years (decades/centuries due to time manipulation) of preparation, power synergies, high morale and trust, could do anything to it. Just flat-out proven that it would take an act of God, not humanity, to beat it - which is what ended up happening.
Afterwards, things went back to cops and robbers, like the original Leviathan fight. The fights against Khonsu, Tohu, and Bohu weren't about killing Endbringers, they were about limiting or mitigating damage. "Do enough damage, make them go away, hope Scion shows up for a repeat." It wasn't until Zion started Gold Morning that the same kind of feeling came back, and it took someone/something ascending to something like a God to even have a chance.