That is because it is a company for business/professional users. Other than you skipping over most of their product line, gen 5 is just generation 5, gen 6 is generation 6 and the extreme is the more powerful version.
You might as well mention the t series the p series and the x series (if they still make them) all of which comes with a bunch of numbers after them.
Anyway apple is a porche and thinkpads were russian tanks, lately some have gotten a cosmetic update. When you look at it like that it makes a lot more sense.
Why do names of tools need to make sense? I don't go around calling my screwdriver with cute names. It has a job to do. It needs a unique identifier to distinguish from other screw drivers.
> I don't go around calling my screwdriver with cute names. It has a job to do. It needs a unique identifier to distinguish from other screw drivers.
Screw drivers also aren't regularly re-designed to hop on current design trends and bump specs (or, rather, if manufacturers try it then people ignore it). Car models are probably a more apt comparison.
IME, Apple's product names make more sense than virtually any other computer maker, or auto maker.
Currently computers from Lenovo are:
ThinkPad X1 Carbon Gen 6
Yoga C930
ThinkPad X1 Carbon Gen 5
ThinkPad X1 Extreme
Legion Y740
MacBook (RIP), MacBook Air, and MacBook Pro make complete sense comparatively.