No, you're right. This year has been tragic shiny hunting wise. Catching Kangaskhan has cost me a lot of luck. Current average of 10,430 for 50 shinies this year. By far my worst. Hopefully it turns around soon...

Ouch that’s very unlucky! I hope it turns around for you soon. Especially in Gen 2, the Pidgey squad was a little funny, but I really hope Koffing doesn’t end up the same way