Indeed, Akiko was a very simplistic approach (basically latches and some wiring) to be able to handle chunky data instead of adding a native mode to the chipset, which would've been a much better idea a couple of years earlier.
IMHO adding a chunky mode to Lisa wouldn't have been very hard. It would've rendered the blitter partly useless, but that could have been addressed later with a new Alice rev.
On a side note, an '030 is only faster than an (EC)'020 for its data cache and higher clock speeds. Switch off the cache and they perform exactly the same, to the cycle.
