Personal entry styles is something no software company can do much about except, I would argue, understand and overcome the reasons for such personal systems. Alternate Name overcame all those personal entry techniques for missing names yet people still use them. I believe the remaining reason for that instance is wanting a place holder in reports where a name field is blank, this is something RM could easily overcome.
Bob Velke, who was the proprietor of Wholly Genes and the designer of TMG, argued that the software should make no assumptions about the nature of the data; it was to be organized and entered per the desires of the user. For example, the entry boxes for what we would call "place" and "place details" were marked L1 through L10. The user could design and label them as preferred, and the sentence templates could be set up accordingly. I thought that was an excellent system, but it didn't lend itself to ready GEDCOM transfers to other programs. I guess my point is that one is better off using just one database. It has to allow for easy data entry and it has to output reports and data in forms useful to the user.
It's hard to imagine a software company advertising its program as "accommodating exact transfers to our competitors X, Y and Z."