I've never understood the TA crowd. I think as humans we are biased by the last segment of the line and what that would have meant - or did mean - to our bottom line.
And I'm certainly no TA aficionado, but tell me - given the chart in the first post, why isn't everyone going long here? Why aren't those two lower end spikes a "double bottom"?
This isn't about TA although I do understand you trying to use "chart analysis" to draw a line to TA.
The problem is the human nature...the mind or how we relate to the markets. Some traders are going Long and others are Short that price action even those traders that do not use TA nor believe in it.
The issue is our perceptions of the markets, how we relate to it and how we try to exploit such involving "long term positions" which is really the issue about the chart...very few traders will stay in those "long term positions" because our subconscious (the mind) isn't wired for such...behavior finance.
Just like you said or imply...we tend to be more influence by recent events in comparison to the overall picture (more difficult to see by most) via your statement as humans we are biased by the last segment and its applicable to all other trading approaches not related to TA.