I agree with hard to say. Leaves look fine for now. However the stem does look damaged. Not to the point it cant grow, but grow restricted. Not sure how this one will do. It looks like half the stem is missing in one spot. Think of it like pinching a garden hose. Its gonna change pressure and volume making it through the the other side of the hose. How much it will effect the plant idk. Maybe someone else has had this and has more experience with it. Ive damaged a couple stems and they did not turn out well but that's just my experience. They dampened off and were a waste of time, nutes, and electricity. But again that was just my experience and it was me accidentally crushing the stem trying to make it stand straighter during a transplant. The stem was never cut away like yours is. Just broke the plant stem internally. Showed similar dark areas around the damaged part though.
If it were me and I had more seeds, I'd start another one just to be safe. Can always throw this one in the corner and see what happens but i try to save my resources (electricity,nutes,soil,ect) for ones i know are going to do well not a maybe. You can always grow it out too and use it as a way to learn from mistakes too. Its your grow, so its up to you in the end.
Just my thoughts,
Best of luck! Happy Growing!