Toop's article is interesting, and I broadly agree with what Watson has to say (as usual). I thought this comment in particular was spot on:
"[T]he idea of neutral justifications as a requirement of political liberalism is both overblown and widely misunderstood."Indeed. I've written widely on political liberalism and I don't recall referring to 'liberal neutrality' or 'neutral justification' in any of my work. This is because I don't find the term or idea felicitous, and it's given rise to many misinterpretations of political liberalism over the years.