I thinking a lot of what Lakoff has to say is very useful. I often talk about the importance of "framing" in the sense Lakoff means it.
My main criticism of his position is what I would describe as a kind of linguistic reduction. It's a little reminiscent of the 1960s cliche, "What we have here is a problem of communication." It became a punchline mocking people who tried to reduce real material problems to a matter of insufficient polite conversation with one another. I suppose that's a professional hazard for linguists.
I was impressed with this interview.