Spike app changing platforms?

I got a message from Spike saying they are migrating from Test Flight to Crashlytics but not an email for joining the Crashlytics platform. Is this something that hasn’t actually happened yet or did I not get that message. Just a little worried since they sent that first message a week ago and today I got an invitation to join Spike but it looks nothing like their tutorial from last week and it’s called AppCenter not Crashlytics.

I know they have a Facebook group for Spike but I don’t use Facebook so I’m wondering if there is something I’m missing.