Comparing Ohio's absolute number of BFRO sightings to Oregon's is really apples and oranges here.
On a per nonmetropolitan capita basis, Oregon has about 2-1/2 times more reports than Ohio. Ohio won't be passing Oregon anytime soon on that measure.
The least densely populated counties in Ohio have about 10 to 25 persons per square mile (about 5 or 6 counties total in that range). Almost all of them are in the southeast.
There are 11 Oregon counties with less than 10 persons per square mile. They are mostly in the eastern part of the state. Even some of the more remote coastal or Cascade counties in Oregon are not exactly bursting with people.
When you see a lot of reports for a particular state or region getting posted to the site, it's most likely due to a motivated investigator working a backlog and getting caught up on witness interviews. It's less likely that there is a whole slew of new reports being submitted to the site.
Ohio does have some heavy forest cover in the southeast, mostly oak and hickory. There are also some extensives ranges of maple, beech, and birch in the northeast. The central part of the state also has some elm, ash, and cottonwood.
The entire state gets a good amount of precip, with nowhere getting less than 30 inches (John Green mentioned 20 inches as the level beyond which sas sightings became more frequent). The southern part of the state gets up to 50 inches.
Black bears have been moving back into Ohio from West Viriginia since the early 90s. There are probably less than 100 resident bears in the entire state. But, they have been sighted over the entire eastern half of Ohio. If the habitat is good enough for a black bear, it's good enough for a sasquatch.
Now re-imposing my vow of silence.