Yes and no.
No they will not overeat in a single feeding session. In my experience no matter how many grasshoppers I put I’m their viv they will stop eating once they are full.
However when I comes to females yes, they can overeat. Not in the sense that they will get fat, but that if they are consistently over fed they will have abnormally large clutch sizes. Large clutch sizes are very taxing on their bodies and shorten their lifespan.
Always keep the lay bin in her enclosure no matter what part of her cycle she is in, then you don’t have to worry about the timing.