I can't imagine why unless it influences the flavor.
We are very limited here for garden supply/seeds and plants. None of the gardening catalogs had any celery either, but I have some sources from the Internet that I'll try next year.
I suppose that it is why the grocery stores charge more for celery “hearts”. They are more tender, but I always feel like the produce manager has discarded the best of the vegetable.
Celery is such a nice, co-operative vegetable. You can use everything — leaves, stalks, root, and you can eat it raw, or cooked.
I have never had home grown celery so I would not know if the paleness means a tender stalk - other than the center of a bunch of celery is younger and tender.