It is only your claim. A search proves that the wide variety of science fiction armor does not look like the ridiculous spiked armor in the leaked photo. There is a common theme to science fiction armor, just like there is a common theme to fantasy armor. The spiked armor does not look like something that was made for science fiction.
Science fantasy is under the umbrella of speculative fiction, not science fiction.
Star Trek was pitched as a science fiction.
Memory Alpha: Star Trek is. . . :
A one-hour dramatic television series.
Action-Adventure-
Science Fiction.
The first such concept with strong
central lead characters plus other
continuing regulars.
If
Trek leans toward science fantasy, then it is a bad science fiction. Ranged weapons are relevant because the armor will be designed primarily to protect against ranged energy weapons or for multiple purposes. Moreover, even as an armor designed for melee combat, which Klingons are shown to practice, the spiked armor in the leaked photo is impractical and dangerous to the wearers themselves and their group mates.
Let Lloyd explain it to you:
"Spiked armor" ("In summary: no")
"Attack of the Klingons", time index: 3m51s
Even if you go with that theory, what exactly are they protecting, considering where the spikes are? Otherwise, see the linked video above about spiked armor.
That depends on if you are trying to make good science fiction or not.
Contusions? Try lacerations and puncture wounds for starters.