CMyself and a close friend got an Ex Raid pass for the same Gym Date and Time.
We did not do the same Raid(s). She also used our other close friends acct as they are in hospital having major surgery atm for the same Raid and also got the Ex Pass. Confirmed recently from her that both acts did not catch the Kyorge.
The only Raid She did on this Gym was Sunday Jan 14 at around 10am for a Kyogre with around 30-40 other people.
The only time I have Raided this Gym was Sat Jan 13 around 3-4pm for either a Magikarp or Wailmer (cant remember which). I raided it on 2 accounts Solo Private Battle. Both were caught on all accounts.
The second time was Sun Jan 14 around 2pm for a Wartorle. This was also done Solo Private battle on all four of the Families accounts 2 at a time. In the time I did that I saw around 20 people come and go and Raid that Gym.
I know of a fellow Mytic trainer that also got the same Ex Raid that his only Raid on that Gym was for a Snorlax on Fri 12th around 4:30. He caught the Snorlax.
Fri Snorlax Caught
Sat Wailmer Caught
Sun Wortorle Caught
Sun Kyorge NOT Caught x2
@Thorend just updated this with confirmed cases of Raid Boss not being caught an Ex Pass still issued x2.