No.
Showcase is a homologated race trail approved for US Ski and Snowboard SL events. My son raced SL on Showcase in college. The course started about level with Tower 6/2B. Tower 6 was probably created because of the SL starting gate.
Twister is homologated race trail for FIS GS and SL races and US Ski and Snowboard DH and SG races. My son raced GS in college on Twister.
Echo is homologated race trail for FIS SL, GS, and SG.
They are all currently valid.
The finish for the races on Twister is the bottom of Showcase and has been that way since the 1980s.
The Gore UMP has a bunch of other trails that were supposed to be cut on Burnt Ridge. The HSQ was installed in 2008. Fourteen years later and we have the underused lift, 2 trails and an unfinished pod. I guess that was the lie in order to get the HSQ.