Absolutely! Once you've added "between" dates and double year dates, gedcom becomes impossible from UFT without major work to the resulting file. Gedcom should export the full date, not the structured date. The structured date needs a major revision. If the major purpose of it is to give a short option for certain reports such as pedigree charts, then allow it to be edited with free text within a limited number of characters, that way we can use double dates and squeeze in a date such as "betw 1776-1778" if we have to.