Plus, Chronicle makes the Genysis endo products so it has to be good.
They probably got all the files created for Genysis as a cost saving method. Why start from the ground up when you can get fairly recent CGI files for cheaper. The change in design is so minimal that the average fan will not notice. Plus, if the timeline was altered by Sarah, then maybe these were too?
Lots of companies make Genysis stuff. If the original Legacy design wasn't well done it wouldn't matter who reproduced them. Movie wasn't great, but the Endos were.