All interesting perspectives.
Take this idea and ponder on it. What if a guy is purely a producer and marketeer?
T3 buildings = huge profit. So if they want they just snag the heavily kernel invested technology and start an endless supply of MPCs without ever needing to research them. This is like Dairy Queen saying, yea everyone can replicate our Blizzard Shake - we won't sue. Then Burger King comes along and takes DQ's R&D and undercuts DQ so bad they go out of business.
Devs should really consider why they made Prototyping required on Bots and attempt to apply the same logic to MPCs, imo.
Some people play checkers, some play chess... Once in a while you can find a guy playing GO. The former is prey, the secondary is a teacher, and the latter is a general.