Front driveshaft too short?

I had a new shaft made and wanted a few opinions on the length. I took a few pics/measurements and think it is too short. There is about 3-3/8" of spline exposed out of 6" total. IMO, only about 1-1/2" of spline should be exposed for longevity.

Thoughts on these pics?

There is still plenty of "travel" available, I wouldn't worry about it. Keep it greased/clean.

That's fine. If youre worried about the exposed part get a boot to cover it.

Since the spline is so long, you should be fine. I prefer much less spline showing for sure.