I don't think I have blinders on, calendars are very important for my campaign. Where your analogy falls apart for me is that I have found *nothing* that provides the calendar functionality that is on the RW development roadmap. There is no campaign-management software that is less feature rich that supports calendars for me to consider. I would be very interested in knowing what you are using to support multiple custom calendars as well the rest of your world building and campaign management.
The current state of calendarless RW is not akin to using a simpler word processor that supports tables versus a new, groundbreaking word processor that, however, does not support table. A better analogy is that I have to use a spreadsheet program in addition to a word processor program, because the spreadsheet program just doesn't support the kinds of calculations in the tables that I need to run.
I do not put information on historic events in RW. My historical timelines are managed outside the program. For current and future dates, I have a spreadsheet, outside of Realmworks, where I have the conversions for the various calendars. These dates I enter in RW. I use the Gregorian date field and also paste the dates from the other calendars in a snippet.
When custom calendars are released, I will not need to re-enter these dates, because RW will allow calendar formats to be toggled and will convert dates on the fly.
I could do the same for past dates as well, except that I already created a number of important dates and time lines in the custom calendars and doing the calculations for events that took place centuries or millennia ago is not trivial.
The fact that I have to do so is not ideal. I REALLY cannot wait for custom calendars to be released. But I've seen no other compelling option that makes me reconsider using RW.
There may very well be something about your campaign that makes custom-calendar support so critical to your campaign that their is almost nothing you can enter into RW that would be useful to you. If this is the case, I am very interested in knowing what you use instead. I'm not saying this as a challenge, but I've looked high and low and found nothing that work short of kludging a solution in a spreadsheet. I would be grateful if you could share a better way.