Phenomenology?

As Mr. Frank S. Fairey is the talk of the town, I'm going to explore his work and statements from a few different lenses. First up his manifesto:

The OBEY sticker campaign can be explained as an experiment in Phenomenology. Heidegger describes Phenomenology as "the process of letting things manifest themselves." Phenomenology attempts to enable people to see clearly something that is right before their eyes but obscured; things that are so taken for granted that they are muted by abstract observation.

Kind of. Even a mass market source like Wikipedia doesn't think that Phenomenology is able to be distilled down to a single thing. First let's use the modifier that identifies Heidegger's version of Phenomenology and let's call it Existential Phenomenology. Now, if memory serves me right, Heidegger's impetus to write Being and Time was a reaction to psychologism and Kant's epistemological refinement of metaphysical inquiry. Through the writings of his teacher Husserel, Gadamer, and others who were exploring the realms of fact and knowledge Heidegger was well versed in how we understand, ontologically speaking, our selves and who we are. Heidegger decided to add to this knowledge by exploring the vocabulary used by philosophers to explain being. Something he thought that was overlooked since the Greek philosophizers were discussing things.

So, a guy whose major work gives Ph.D students headaches over the complexity of his writing and his thoughts, who discusses the complexities of the independent subject and sensory apprehension, who was arguing against empiricism and positivist science as philosophy, who asked how we know we exist in an ontological sense-- his major contribution to philosophy was that we should look at stickers in public, that we don't understand where they come from or what they mean, if they mean anything at all or are just quasi-advertisements or actual advertisements for something, and we should be able to disagree if we want to? That Heidegger wanted people to put up random acts of confusion for people in public to make them question things?

And since when did Hediegger not want to discuss things via abstract observations? I'm pretty sure he wanted to discuss abstract things like existence, knowledge, thought, connection, history, aesthetics, culture, expression and other things that were profoundly observable through his Existential Phenomenology, which is, rest assured, an abstraction utilizing observations. But I'm sure that Mr. Fariey is well versed in the Hermeneutic of Facticity and Aristotle's use of phronesis, the differences between ready-at-hand and present-at-hand (which would radically alter his sticker "experiment") and Hediegger's use of alethia in aesthetic criticism. The one about disclosure and the history of world vs. the history of earth? That olde chestnut.