I told someone else this recently, if you won't eat them I will.
Yes they are fine and as dilbert said wash then and check for bugs. Of course cut away the split part when eating them. Another thing if you keep them too long they can get moldy so again eat them first. But if they get beyond edible state save seeds from them.
And yes vertical splittng is normally due to a dry fruit getting a lot of water. The dry skin can't expand fast enough and it cracks, think of it as stretch marks. It is part of gardening. Some things you can't control, but even watering will take care of it but than again with a huge down pour that can not be controlled. Such is life in the garden.