I always thought of Hanlon's Razor not as a way to dismiss evidence but as a hurdle to prevent a rush to judgment. That is, it usually indicates that one should consider seriously and root out any evidence or possibility of malice but not assume by default that malice is afoot. And finally that sometimes a cigar is merely a cigar.

IOW I think your corollary is precisely on point. Perhaps we should name it: "Romeo's Corollary to Hanlon's Razor" has a nice ring to it!