I’d like to call into question the Origin of those Omnics from Shooting Star, because I believe they weren’t in fact the Kishin talked about in the short, but rather, Talon Omnics. Let’s look at this real quick.
1.) We saw the appearance the Kishin took in their most recent attack was that of a white and red quadrupedal spider like monster.
2.) The Kishin TYPICALLY take months to adapt and change for their next attack. This is evidenced by D.Va’s friend saying that it was too soon for another attack.
3.) The sleek design of these Omnics reminds me of the ship that picked up Widowmaker in Alive.
4.) The red and black color scheme seems to match perfectly with Maximillian. Perhaps it’s possible he’s like a mob boss with Omnics underneath him.
5.) Talon’s ultimate goal is to start a war, staging another ‘Kishin’ Attack so soon after the actual one would greatly help in stirring the pot for it.
In conclusion, I feel fairly certain in saying those Omnics weren’t actually the Kishin MEKA usually fights back, but Talon’s own little variation on the model