Never hunted up that way but spent some time out there. We used to do some early season camping at the beginning of the March. We would just drive up some random spur with a good view of the lake and the perfect mix of stars and the Harrison lights off in the distance... then we would re-heat Jim's Pizza on the pocket rocket and play some cards. It was never too busy that time of year. I went up there a year or two ago and was sad to see the timber companies are gating a lot of the spurs. No equipment or anything, just gates. Lost some easy nice views for sure.
Like most places in the Fraser Valley though, the roads are super busy but the overall land mass on average likely receives less hunting pressure than anywhere else in BC. 98% of hunting pressure is condensed into less than 5% of the actual land mass, in and around roads. I have poked my head in the timber for a few little hikes and it looks like everywhere else... mess of animal trails, rubs, mauled stumps/logs, bear crap and hardly any sign of humans.
Kinda funny. Last year I tried to help a guy on Facebook who was complaining about doing something like 2000km's up and down east harrison FSR and various spurs on ATV over a few weeks and didn't see a bear. I gave him a few tips on some terrain to look for and suggested walking around that area a bit, as Region 2 bears have decades of education to bolt for cover when they hear a vehicle and that where I hunt, I have only ever seen 2 bears (bolting away) on the road (April to December) in around 25 years, but on foot, we see one pretty much every day late April to June and have shot one every year without much effort. He promptly told me to F off and, that I am wrong and that I am the reason there are no more bears left in Region 2. Can't help stupid I guess