Is there pitfall built into phenomenologist philosophy?
If you only look at phenomena as experienced and take the experiencing mind as a given, you may not see that and how both the phenomena and the mind are built up or implemented, or constructed, in terms of something else.
You may then develop a tendency towards taking the phenomena and the mind at face value and mistake them for what is there. The philosopher starting from a phenomenological basis might, as a result, become blind for ideological constructions, unable to see their constructedness. For example, he might take something like “Volk” or “Rasse” as being just there. The phenomenological approach might lead to becoming blind to the constructedness of these things.
It seems to me that this might be a pitfall Heidegger stepped into.