Are you aware that it is not necessarily a universally accepted pshat? See for example ראב"ע, רד"ק, תרגום יונתן.
Not sure you are correct about radak
Abarbenel in Melachim learns like metzudas david as well.
מלבי"ם learns like ibn ezra
Seems like a 50/50 split amongst meforshim how to learn the passuk. Why can't he quote it like 50%?