I do not really agree with your point of view. Were Einsteins orginal thoughts with elevators, space-ships, trains, gravitational redshift, time dilatation not based on simple drawings and a lot of words ? Were these thoughts not valuable ? Were they merely philosophical ? Of course, now everything is put nicely into equations and this is the way it should be. Maybe that mathematically minded persons "think" in equations before they realize what it means physically. For most physicists, like myself, the physical ideas or intuitions come first, followed by the equations.
Also, the fact that there are few equations does not mean that it is less valuable than lots of equations. Look at de Broglie's famous formula relating wavelength and momentum. ONE equation, a lot of text, but an enormous significance. I find that very often the opposite is true : Some articles are full of equations, sometimes difficult to verify by the referees, and with no clear message at all. THESE are the type of articles which will be forgotten very soon.