I'm not convinced that "originalism and textualism" is the same thing as "little innovation". The claims of originalists to divine the meaning of the text, and how that meaning applies to new objects and social structures that did not exist at the time, often strike me as remarkably innovative -- in a sense they would find pejorative.

The "conservative" judges votes align extremely well with each other and with the wishes of the political party that nominated them -- which is itself frequently not "conservative" in the sense of "conserving" something. In both cases, the claim to "conservatism" strikes me as having a lot more to do with group identity than any consistent ideology or approach.