Yes, it is [a newer command than the version of AutoCAD I used for years, so I wasn't aware of it].  BUT if the small difference matters, THICKEN goes only one way from a Surface, with no center-the-thickness option -- it's not like giving a Polyline width [which is centered].  So if the thickness of the ribbon needs to be centered across the zero-thickness twisting Surface, I think it's necessary to LOFT from one Helix to the other, and also LOFT in the other order [from the other to the one], and THICKEN both of the Surfaces by half the desired total thickness, then UNION the two Solid results together [and Erase the Surfaces if you like, if DELOBJ wasn't set to do that in the process of Thickening].

Very nice model, and excellent tutorial.  

I see now that your earlier request to me was an opportunity/offer to create the tutorial.  This may be a little late but, Thank you.  

I'll see if some time presents itself - perhaps I can put something together that has something new to offer. 

I suppose keeping a mind towards accuracy requires hard parameters.  The OP (Arunvigneshram) had a picture, and a description of a strip of metal inserted into a pipe.  A new tutorial should make use of philippe's dimensions - a 20 mm inside diameter pipe @ 180 mm long with a .2 mm thick strip with one twist.

I'll see what I can do.