"In broad strokes, the Indiana and Illinois laws are similar. But there are a couple of important differences,"
Differences are differences. That's what you asked for.
Those supporting a religious angle will say those differences will not amount to anything.
If you look around, legal experts are saying it does.
Keep in mind that the Washington Post's summary stated that Pence's assertion that Indiana's law is effectively the same as the law backed by Barack Obama is fundamentally correct. "Pence claimed the Indiana law was “same version” and the “very same language” as the Illinois version and, on a broad level, one can make a case that the two laws are roughly similar." It only awarded a single Pinocciho because Pence had "repeatedly ducked questions about whether the law will permit discrimination against gays and lesbians."
This also comes down to parsing grammar and where the commas are placed.