I think eating during training is completely individualized, as it will adversely affect some and be a benefit to others. I think if your session is lasting closer to 3 hrs that some BCAAs and vitargo would be okay to give some more energy to finish off the workout, but a whole food is too slow to make a meaningful difference outside of psychological/placebo. Hell, a "rinse" of gatorade in your mouth without swallowing is likely to improve subsequent performance through this mechanism.
In general, I don't advise strength athletes to eat during training unless it's a competition and thus, lasting longer than 2-3 hrs.