If a Dev is making promises and each time the promised deadline comes up there is an excuse (got sick; dog got sick; relative got sick; bad internet while in Spain for 6 weeks, etc., etc., etc...) over a 14 month period when the update was initially promised in about 4 months
(gee, does that sound oddly specific? ), well, then real adults will get pissy, too, but not over "hey, real life got screwy and I'll be about a month later than I expected". Most people know that most Dev's have day jobs and this is a hobby that can make them some supplemental cash that, hopefully, covers the cost of digital assets, subscriptions, licenses and better hardware.