That looks like a typo. Basically they posted the specs for the 70 AMP ESC (OCA-170HV) on the 100 amp page.
These are the specs off the OS website for the OCA-1100 HV ESC:
4-36 NC / NiMH for 90 to 110 class motor ,4-12 Lipo
○ Lipo battery type selection, NiCd, NiMH
○ 100A load current of air brake ON / OFF (5 seconds 150A)
73.4x56x31 Dimensions (mm): Weight 124g (including wiring)
OMA-5020-490/OMA-5025-375: OS recommended motor