Yuna's PCS was 74.5 - it was her TES that dropped from Worlds 2013. She stopped getting showered in +2 and +3s, so she got +12.2 GOE instead of the 16.51 GOE from Worlds 2013. She also got a mysterious Level 3 footwork sequence. She had little control over the GOE, but putting the 3S combination in the first half and only doing a Level 3 layback spin is entirely her fault. You have to go down to the 8th-place FS from Akiko Suzuki to find a LP with lower BV.
Well, I thought that was one of the things we discussed. Why Yuna's scores were held down in levels and GOEs while Adelina was showered with never-before-seen GOE and PCS.