Mahari Kara: It is the publicity of her Zenus. Malbim - even though they wanted to be covert, it became known.

Radak, from Targum Yonasan: It is being light in their eyes. Mahari Kara - it is written without a Vov, to show that it is not an expression of Kol (voice).

Malbim (here and Melachim II, 23:26): She flattered to show externally that she is a proper woman who fears Hashem ¹ . The nation repented when Yoshiyah found the Sefer Torah, but returned to sin in private - "v'Lo Yar'ah Bogedah Yehudah Achosah; mi'Kol Zenusah

Rashi citing Targum Yonasan: It erred with serving stones and wood.

Malbim: This was covert, unlike Yisrael, which sinned on every high mountain. This is worse, for it denies Hashgachah.