Yeah, I agree. If it's truly in like new looking condition then you're fine for now. However over the winter a full end to end to do it all would be a nice step if you want to use the bike for years to come. Even if it doesn't need it you'll know that you're starting with a properly done bike and if there IS any issues you'll discover them as you move from bearing to bearing and do the brakes and the rest of the stuff.
If it's a steel frame then frame saver'ing would be wise during this strip and lube process as well.