The section has eroded more than before so at the bottom the crack is now 8 foot wide and 8 foot deep, with a deep gulley all the way up from the stream to the top. (This was about 2 weeks ago)
It’s passable if you’re pushing uphill from the stream, but you need to take extra care and I’d avoid in the rain due to the risk of further erotion. It would be very dangerous to head down from the top just pushing. Don’t even think of riding it.
If you want to ride follow the track from the Chappel South and climb the bridle way to the farm and go down from there. You’re not missing much my avoiding the first section.