There were limits to collaboration. How could a mech design accommodate an endless number of specialties and abstruse effects?
It was impossible for hundreds of mech designers to contribute their distinctive strengths to a single mech design.
Even if their specialties miraculously didn't overlap, a mech or mech design simply couldn't contain so many exceptional elements!
In part, this was because a mech design could only accommodate a finite amount of design philosophies. Adding more than a mech design could handle would only dilute the strength of existing abstruse effects.
The general rule when it came to collaborations was that the total capacity of a mech design largely depended on the size of the mech and the capabilities of the lead designer.
The bigger the mech, the more specialties it could accommodate.
The better the lead designer, the more room he or she could open up in the design.