Very, very good analysis.
BUT while the Angle campaign may not have been decisive, by making Harry worried, Dem contributors were forced to divert valuable extra resources to him that might have helped other Dem candidates win.
Sort of like Nazi Germany having to take anti-tank guns away from the Eastern Front to use against Allied bombers.
So, a Pyrrhic victory for Harry?
That's what happened with the campaign I volunteered for in PA-13. Allyson Schwartz had won the previous two elections by over 25 percent. She had a three million war chest that could have gone elsewhere in an easy race. Instead, she had to use it all to defend her seat.
And there is a good chance PA-13 will go bye-bye in redistricting anyway. That would be sweet justice indeed.