I'm not sure which of your strawmen to actually respond to! "how...

I'm not sure which of your strawmen to actually respond to!

"how would the little buggsies know to run and hide in the walls of the bladder"
I think you should probably make friends with a microbiologist, at least! Uropathogenic bacteria can indeed invade and reside within the epithelial cells lining the bladder wall. And let's not even start on the kidneys...

"So, given the way the test was done, how did it actually do at killing said e.coli compared with other antibiotics?"
- We have literally NO IDEA how it compared in this study. The results said a "decrease in bacteria over time", and then they showed a graph from a completely different study. You're the one claiming it is effective. You tell me how it compared to other antibiotics.

Why do I continue to hold?
Honestly, if you are so curious, the reasons are many. I am offensively rich, so that the $500k odd invested here I don't particularly care about. I have plenty of spare time. I care about superbugs. And RCE announcements spark a kind of joy in me that is hard to describe.