Didn't Cari confirm at some point that these three games share a universe?
OIAL takes place in the same continuity. MBML does not. Plus there's a lot of inconsistencies that MBML has with its cameos that essentially make it non-canon (such as Alex appearing fully grown in her cameo despite Eternum recently being released (in her flashbacks with her Grandma she was still a kid when Eternum was on the verge of being released)).