Tosh,
from the pax mobile phone cam you can make an assumption that the 380 was speeding ? No, he may have been but the difference in relative sizes also makes it difficult to tell.
Did the comy tell ground they were holding way off stand ? did ground tell 'super' to stop ? with such inertia, did 380 know what happened at once ?
Uncle Freds right, the system seems more at fault here.