Frankly, if you get decent line clipping, I think Quigibo would want to include it in Axe itself. The only reason Axe doesn't have proper line clipping currently is because he hasn't gotten around to making a decently small/fast solution himself.
Jacobly is the one currently working on a clipped line routine. My thought was simply that it would be a good idea to include a line routine that doesn't clip, just for size. If someone doesn't need to clip, then the clipping code would just be too extra useless bytes and cycles.