They absolutely did something when they switched us to the Valentine's event.
This issue has occurred so often with such consistency that i have to believe it's on their end. It's like they had us on primary equipment for the winter event, and we had fairly smooth performance. Then this Valentine's event started and I'm back to multiple crashes per session.
But the cause could be anything. It could be as simple as a default minimum timeout specification being less than usual. Meaning if you lose communication for longer than X seconds, it drops your connection from the server.
They may also temporarily decrease the spec intentionally, to reduce traffic. Reasons are aplenty. So try not to take it personally. When our device and network conditions are constant, it's obvious it's them, not us. But I've noticed it too and it's annoying as heck. Hang in there hopefully they'll make a correction soon.