Hardly. The location/region and weather variability come into play too and I carry a similar kit for that reason. There is no more than one extra layer really. I find mid layers really handy, and great for extending the range of a sleeping bag. The mid layer with a windshirt works great. My personal preference is for a slightly lighter fleece mid-layer, but we're quibbling over 6 ounces at most.
If you run cold or you want the versatility, why the heck not? I'm of a mind that any good UL kit can afford one item out of the "approved" norm. Some like a book, others a fat sleeping pad, etc.