Invisalign lite single arch treatment for mild lower arch crowding? Feasible for optimal alignment? (Photos)

Initial consult summary: -no aligner needed on top arch due to perfect alignment. -0.5mm shaved off L + R sides of lat. low. incisors bilat. Invisalign targetting low. 4 front teeth. -Vivera retainer indefinietly. Concern is doing invisalign for single arch may create disharmonious bite e.g. post. open bite. However crowding is minimal so could my case be the rare few where single arch aligners are indicated?