Purpose of this fitting shape?

[Pnovak411]

Hi all,
New to this forum and hope I'm posting in the right area. I am installing an exposed showerhead ASM with no mixer behind the wall (wall will be plastered), and this fitting is what they included to thread to the water feeds. Can I replace this with a straight adapter or directly sweated fitting? I could avoid the NPT connection altogether. Why is this bent, it must be on purpose? Reduce water flow, etc? Maybe it is for people who can't get the 120mm spread to have fine tuning?
Thanks in advance.
Paul

P.S. here is the showerhead ASM
https://www.lowes.com/pd/Boyel-Living/5013500771

 

[Twowaxhack]

It allows you to level the faucet if the pipes are not exactly perfect level with each other.

You can use straight fittings if you have them and don’t want to use the ones pictured.

 

[Pnovak411]

It allows you to level the faucet if the pipes are not exactly perfect level with each other.

You can use straight fittings if you have them and don’t want to use the ones pictured.

Thank you, and maybe I will use them unless I just connect the fitting before sweating to verify perfection haha!