Events can be acknowledged as significant without prayer. And while prayer may denote significance for you, it denotes exclusion for me.No, that's not a compromise. That is eliminating the observance altogether. Many people pray all of the time. This is about acknowledging a time, yes, in place of spoken prayer, to acknowledge the significance of the event. Eliminating that is not a compromise.
If the purpose is to commemorate significance, then why not use any of the many forms of symbolism that express this for everyone present? Why do you need prayer specifically?