Are material flat buttons distinguishable?

Blue colored texts are known to be links everywhere and users know they can click on them. How about Google Material Flat Buttons? In material design, colored text with enough padding is known as a button! Do people recognize colored texts as something they can click on?

Edit according to the new Material Guidelines' update: It says if you're using the flat buttons in languages without capitalization, it's necessary to have enough padding to make the button distinguishable from the text, yet the question stands, is it enough to make it distinguishable too? Specially in languages without capitalization?