There are 2 Sublime Text PPAs and both install the correct version. You've probably used the Sublime Text 3 PPA but posted the instructions for Sublime Text 2 in your question. I just tried the Sublime Text 2 PPA and it correctly installs Sublime Text 2 and Text :
For Sublime-Text-2:
sudo add-apt-repository ppa:webupd8team/sublime-text-2 sudo apt-get update sudo apt-get install sublime-text
For Sublime-Text-3:
sudo add-apt-repository ppa:webupd8team/sublime-text-2 sudo apt-get update sudo apt-get install sublime-text