Yes.... Ultimately it is a good thing if seg wit is thoroughly tested before going live.  No matter what there can be problems and unexpected happenings, but when dealing with a network as valuable as bitcoin, it would likely be tragic if there were some significant bug that caused some people to lose money or to become unnecessarily vulnerable to something that could reasonably have been identified prior to release... and, actually, since bitcoin is not currently broken and there is no real emergency (besides a few whiners), it is better to verify on the front end rather than getting caught with your pants down by acting too quickly to rush something that doesn't need to be rushed.