I don't think MATLAB checks text object's FontName properties. I can only find that MATLAB supports Sans Serif and Roman fonts though.
text(0.5, 0.8, '\textsf{sans serif}','interpreter','latex');
text(0.5, 0.7, '\textrm{roman}','interpreter','latex');
text(0.5, 0.6, '$$\mathsf{math\,\,mode\,\,sans\,\,serif}$$','interpreter','latex');
text(0.5, 0.5, '$$\mathrm{math\,\,mode\,\,roman}$$','interpreter','latex');
You can reach out to Technical Support to request an enhancement on FontName check for LaTeX.
