Still, to most people who use OSX Use it as they don't understand computers as well and don't care about its model number. To them 10.10 will look like 10.1 and people will google that and see the old OSX not the new. Apple put in their 30 years mac ad that it's used because it uses the same language as humans. - imagine going into apple store and saying what operating system does this run and getting back "10.10 sir - the latest and greatest!" People will already lose interest as most people in school got taught of 0.8 0.9 1.0 1.1 and so on and not how developers number things! I can tell you now that OS10.10 seems to be too complex but OS10.9 doesn't!
First of all, in what context would a user refer to 10.10 as 10.1 and have this be a confusing mess. Will the Mac App Store somehow install Puma instead of the successor to Mavericks? Of course not.
Secondly, can you show us where Tiger caused any issues for users because it not only went from 10.4.9 to 10.4.10 but also to 10.4.11? I don't recall any sort of issues with people taking 10.4.11 and then doing long division to restart it as 10.5.1. Do you?
Finally, I bet if you asked 01100100 people to read off 10.4.10 or 10.4.11 all 0x64 would state it pretty much as "ten dot four dot ten" or "ten point four point eleven," respectively, not "ten dot four dot one" or "ten point five point one."