I don't caught up too much in identifying "trends". I prefer to think of my trades as momentum impulse signals although my methodology is based on "trend pullback". Congestion is simply another form of corrective action as is the more obvious and clean pullback. I have signals which I enter in consolidation patterns, based on the same principles as simple pullbacks. None of us see charts in the same way and have to develop PA cognizance which is meaningful to each trader. Trading would be easy if all patterns looked like textbook examples.
You do identify congestion though in order to determine your entry based off of congestion versus your entry based off of clean pullback or trend? Certainly congestion can cause you to enter a trade prematurely where there is no "trend" in place for which your strategy would normally work.
I guess I'm saying, you don't just lump congestion into the same category as a simple pullback?