I don't buy the "monkey is unreliable" line from JJP. WOZ has been out for 7 years and all of sudden the mech is unreliable? Come on. Maybe for some route owners with 50k plays on their games but YBR isn't targeted to be a routed game. The decision to remove the mech doesn't make any sense unless it was a cost reason. Same goes for YBR not coming with a mirrored backglass.
If anything I think the removal of the money mech from YBR may signal the shift to future JJP pins being slightly scaled down back in terms of features.