('informal') She's a good musician but comparing her to the legends is 'stretching it'. [=she's good but she can't really be compared to the legends]
Although it may be 'stretching a point' [=exaggerating slightly] to say that this was his best win ever, it was nevertheless impressive.
The work doesn't 'stretch' me intellectually. [=the work is too easy for me; the work is not intellectually challenging]
(..) A useful feature. Your daughter's suit was tricky. I finally created a sturdy material that will disappear completely as she does. Your suit can stretch as far as you can, without injuring yourself, and still retain its shape. Virtually indestructible... ...yet it breathes like Egyptian cotton. (..)2004 The Incredibles