I agree with Anne, and the others, that these will be fine. Some years my early potatoes have way longer sprouts than yours. Setting them out to chit seems to stop them growing more. I usually break off the longest sprouts when planting since i’d rather have a few rather than a lot of sprouts. But i’m not sure it matters a lot. Potatoes are such hardy souls, and they do like to grow.
When i toss my smallest, wrinkliest, longest sprouted culls into the compost pile with no care or nice treatment they always grow enthusiastically! Sue