Pretty much, yes. What it means depends on context, the topic at hand, and the position of the person regarding the matter:

- Indifference - Do care, yet reject both extremer view points on left and right - Studied topic deeply and actually concluded middle ground is the best fit - Sees status quo as valid

It could mean any of these things. Therefore, it's inaccurate to conclude anything on centrists as if they are a well defined group.

Even the term centrist itself is inaccurate, as very few people would have a fully centrist view on every single topic imaginable.

Coercing somebody with a centrist view into a hard choice under the threat that otherwise you approve the "murdering of children" or some other awful consequence, is plain idiotic. It's a polarization tactic: friend or foe.