As far as I can tell, the main reasons Shanghai got Tron as designed were:
1. an IP mandate
2. the desire to have a Tomorrowland rollercoaster that wouldn't be seen as a clone to HKDL's Space Mountain
3. the need to have visible coaster portions outside so the Chinese audience would clearly understand the attraction they were entering (learning from issues with HKDL's Space Mountain, where some guests had no idea it was a coaster)
...and I'm sure there were budget constraints as always.
Alas, we got a copy/paste job instead of a redesign that would better fit and compliment Magic Kingdom.
1. an IP mandate
2. the desire to have a Tomorrowland rollercoaster that wouldn't be seen as a clone to HKDL's Space Mountain
3. the need to have visible coaster portions outside so the Chinese audience would clearly understand the attraction they were entering (learning from issues with HKDL's Space Mountain, where some guests had no idea it was a coaster)
...and I'm sure there were budget constraints as always.
Alas, we got a copy/paste job instead of a redesign that would better fit and compliment Magic Kingdom.