Look, I have no problem with the dates issue. Frankly I think its good to have multiple dates and locations so people can attend multiple events. But set that aside, I'd have no problem sticking to a traditional date.

EXCEPT.....

We have our own temples and deities. Many Iskcon devotees are not allowed in to the Puri temple. Fine. You have your temple. Exclude us and run your festivals the way you see fit.

We'll have our temples and run our festivals the way we see fit. They don't want to bring us in, to see us as part of a larger family, then fine. You go your way and we'll go our way.