Most surgeons are over cautious so one year IMO is way too long. I have had three biceps tendon tears in my life so far...two full and one partial. Full tears take longer to heal and require more rehab. However if the tear was fairly clean ie not frayed like mine then recovery is much quicker. When they anchor the tendon to the bone and the bone encapsulates the end with the anchor it becomes very strong. Whether you are pushing or pulling really shouldnt matter. After a biceps tear i am still bent rowing 315 so there is quite a bit of stress while pulling even compared to benching.

I would say 6 months and you will be good to go.

P