The contrast in the public response to the two incidents is fascinating. While Cold-fusion became a career-ender for anybody associated with it and Fleischmann & Pons both suffered pretty much banishment, repeated experiments have shown that there is something funny going on with that particular mix of compounds (Heavy water, Palladium, Nickel etc) - excess heat.
With arsenic life however, follow-up experiments have proven that it was contamination that was a cause of the result. So there is NO ARSENIC based life. Yet the lead authors of pretty much a gigantic false claim -orchestrated shamelessly by NASA- seem to be doing pretty well, dodging the basic questions with that most famous catch-all - more work is needed (hence more money should be sent my way) to prove the (bogus) claims made.