Yeah, Ford started this trend with the EFII series.
When you look in the owners manual, it says the Transmission Oil Dipstick was an "Optional Extra"
Makes me laugh, as I have a Ghia, with all these extras fitted, but Ford was toooooo Dammmm Cheap to fit a $2 dipstick !
I just got me transmission serviced, and got a shift kit, as well as some Brass seals, and a oil Cooler fitted, and asked the bloke if it was possible to fit the dipstick.
Basically his reply was that the Transmission housing needs to be changed, and that it was cheaper to buy a Box, with the Dipstick Fitted at the factory, rather than try and fit the thing as an after thought !
Personally, I would have prefered if Ford Priced the EFII's around $2 more expensive, and fitted the damm things, instead of trying to cut down on some of the costs.