You are very mistaken, This grease will get moved around with the oil and get into oiling galleries and also get plastered on the clutch frictions. This is considered a rookie mistake in engine building - and it does cost a lot to fix.
If grease were ok to be used - The factory OE Honda bearings would come packed with them, they are shipped dry.
I had to repair automatic transmissions in which some desi mechanics used grease to hold parts in the valve body, the pickup filter was completely plugged with it and on whatever clutches the oil got on, the plates were completely ruined.
ATF oil is very thin - almost like diesel fuel.
