...and Jolee, and Juhani, and Dustil, and Mekel, and Yuuthura(yes, she could have lived and been converted)...
Also, the Rakata were on the verge of introducing themselves to the Force once more.
And keep in mind, the Miraluka Tragedy killed the last (official) Jedi Council...not the Jedi Order itself. Only few and select Jedi Masters went. There were plenty of other Masters who - not part of the Jedi High Council - stayed behind. That's not including all the Jedi Knights, Padawans, and Apprentices who were still teaching, learning, and training.