Persons who are against political censorship and corporate malfeasance are not for that reason obliged to live their entire personal and professional lives in a goldfish bowl. Believing that public utilities ought to be accountable to the public does not make one into a public utility, no matter how hard anyone tries to spin it that way.
Advocating “transparency” for government proceedings, or for the beneficiaries of chartered monopolies and public largesse, doesn’t oblige the advocate to be “transparent” in every personal or artistic decision they themselves make.
This kind of bad-faith attack is common against reformers: “So-and-so claims to call us to virtue, but look, they’re not a saint after all!” is nastily effective, even when the so-and-so in question never claimed to be a saint. Some people will always fall for it, including people you thought were surely smarter than that.