Don't think so, at least I haven't seen anyone using it in the event and I haven't seen anyone mention it.
It is on my to-do list: I've been looking and catching everything in my path every hour I'm awake in case there's some "shinys show up for constant catching" algorithm like chaining in the background. No luck on the shiny Aky yet, though what I'm really after is the shiny Constella which will more likely than not escape if the planets align and it actually shows up, because as it is right now the less rare things like Kibbit kittens still escape quite often even at 100% bait meter.
Also since this is the "Shiny thread":
This next one is more of an example of shiny Kogos in the wild:
Sparkles around the Kogo are a good indicator you have a shiny on your hands, but keep in mind:THE SPARKLES AROUND THE KOGO DO NOT SHOW UP BEHIND TREES, THEY ARE HIDDEN FROM VIEW LIKE THE REST OF THE KOGO IS.
I'm making sure to be very clear about that because there was some minor confusion about that before.
As you can see in the pictures, the Owlprin and Alrunes smallest forms are quite small and very easy to miss, so if they're hidden behind objects, you will never know they were there until they move into view.