Honestly, I think most of the folks in the FDA are probably well-meaning. I don't even disagree that some oversight of vaping might not be entirely out of line. But the regulations that were handed down were way over-the-top. Somebody got way too overzealous. Instead of providing some checks on quality, they adopted regulations that will stifle the industry.
A lot of folks think it was a conspiracy to do exactly that. I'm more inclined to believe that they didn't entirely think out the consequences of the regulations they passed. I tend to believe more in ignorance than in malevolence.