2017 BR-V owner
Not sure why people complain about 3rd row seat space. I'm 178cm/96kg adult and they fit me just fine. Without touching 2nd row with my knees and there's still plenty of head room, even with the 3rd row seat in upright position. If you incline the 3rd row seat there's even more head room.
Yes, your knees are a bit higher, than on 1st or 2nd row, and it feels like you are squatting a bit, but that's compromise for comfortable head room for tall people. I think it's the right one.
I found 3rd row seats in BR-V more comfortable than in Toyota Fortuner or Mitsubishi Pajero Sport. Or at least the difference is subtle.
But I didn't sit on 3rd row as a passenger for a long trip in any of those cars. Just showroom impressions.