The writer is considering deleting the underlined portion. If the writer chooses to delete this phrase, the paragraph would primarily lose a statement that suggests:
F. Wearing protective gear does not necessarily ensure that there will be a lack of serious injury.
G. Wearing protective clothing ensures that there will be absolute safety from serious injury.
H. Wearing protective gear always protects the wearer from death.
J. A wearer of protective gear will probably only sustain bruises.