も[構「かま」]わず => Without considering A N2
Considering, Concerning
を[機「き」]に => Use A as an opportunity N1
Time, Situation
を[契機「けいき」] => As a good opportunity A, (do) B N2
Information, Report
[一方「いっぽう」]だ => Change A continues, A does not stop N2
Miscellaneous
[一方「いっぽう」] => On one hand A, on the other, B; Although A, at the same time, B N2
Contrast,Surprise