Well my ire was exaggerated just to call gogga a jocular vernacular...
But there's a serious point. The game is unlicensed. The only teams/rosters you should have any expectation of being "correct" are out of the box ones: correct here being with "Tindoolka" style names and a year out of date. (Actually they're nearly 3 years out of date since BA made them a good 18 months before release and never updated them, officially a "massive oversightTM".)
If you download community content, it's inherently coming with no guarantee of quality. This is exacerbated because the academy was released bit by bit, with more features opened up so players and teams were created before equipment, kits etc were editable.
In any game, in any mode, you should be checking the quality of downloaded content - it's just common sense understanding of crowd sourcing. It's doubly true for DBC & triply true for career.