This is a ridiculously inaccurate way to explain Derrida to "those who don't know" him. Derrida is one of the most important continental philosophers of the 20th century.
This quote contains his criticism very clearly: "As for the "deconstruction" that is carried out (also mentioned in the debate), I can't comment, because most of it seems to me gibberish. But if this is just another sign of my incapacity to recognize profundities, the course to follow is clear: just restate the results to me in plain words that I can understand, and show why they are different from, or better than, what others had been doing long before and and have continued to do since without three-syllable words, incoherent sentences, inflated rhetoric that (to me, at least) is largely meaningless, etc. That will cure my deficiencies --- of course, if they are curable; maybe they aren't, a possibility to which I'll return."
I never stated otherwise. What we both wrote is in no way contradictory.