Certainly it was an issue with APS-C cameras and lenses - must admit I can't remember the last time I read about it, though. I know Canon has significantly improved its main kit lens from the fairly poor 18-55 to the rather respectable IS version, and I suspect other manufacturers have done similar things. FF does suffer a little from reduced edge sharpness, particularly with wideangles, which are the least telecentric.

And you must remember that ALL the manufacturers have been making their lenses more telecentric, just that most haven't made it an issue, as they still have several that are not.