Earlier quoted context omitted.
First, Erik wasn't Lisp. He didn't even work for a Lisp company, except for consulting for Franz briefly. Second, your cause and effect meter is way off. The resurgence of Lisp happened because there were a LOT of people out of work in 2001 and many of them started working on CMUCL and SBCL. Erik's influence ended outside of comp.lang.lisp and the influence of that usenet group was fairly small, in the greater scheme…
Lisp didn't resurge because SBCL started being developed again. SBCL, although I like it, is still relatively little used, in the overall scheme of things, a scheme which includes Clojure, elisp, Racket, Clisp, Chicken, TinyScheme, Guile, Arc, MCL, and so on. Lisp resurged because new hackers started using Lisp again, maybe in part because of pg, but I think in large part because they didn't get driven away by Erik.…
comp.lang.lisp is long dead.