Heidegger's mysticism has been critic from a number of angles over the years. Theador Adorno's The Jargon Of Authenticity attacked him from a Marxist and so "continental" perspective.
It's notable that Heidegger isn't simply "continental" but specifically taken to be within the "existentialist" branch of philosophy and thus he's been critiqued (and taken up) by a variety of other perspectives.
It's notable that Heidegger isn't simply "continental" but specifically taken to be within the "existentialist" branch of philosophy and thus he's been critiqued (and taken up) by a variety of other perspectives.