Why is the temple corner of many transplant not look right?

I’ve noticed a lot of hair transplants even relatively good/expensive ones the thing they seem to not ever really get completely “right” is the upper sides/temple corner area but like on the side still where hair goes vertical up side of head. I think it has to do with the angle at which the hairs are inserted which is it because naturally those hairs are at such a steep angle that they can’t replicate the same? Always seem like hairs there in transplants end up sticking out weird and randomly slightly. Was curious if there are any doctors or techniques that remedy this? Thanks!

The corner hairline has a transitional hair direction as it goes from the frontal part where the hairs run parallel to each other and perpendicular to the ground, to the side hairline where the hairs point laterally (look at your hairline and you will see this transitional zone that is about 1 cm wide where the hair changes direction. The surgeon must replicate this transition zone for correctly placing the hairline. See a good example here: https://baldingblog.com/repair-of-hairline-transplants-photos/