Massive penny pinching. The original design is here: https://mikrosk.github.io/sparrow/falcon_specification_19920... The 16bit bus limitation seems to stem from the RAM configurations - 2mb rather than 1mb would be the default config which cost more. As a result that kinda crippled the videl - only 16bit truecolour, lower clockspeeds on the CPU and videl, and slower ram access. 8 bit chunky mode was also planned, and a GPU - might have been the Jaguar TOM chip. I think MultiTos in ROM might have been planned at some point.