How it is delivered matters. Of course it matters. Just saying stuff is happening without actual relation to what is going on is overtly bad writing and how you get info without any substance. You could start the opening crawl of Empire with a literal page from a Batman comic, it wouldn't suddenly make Luke Batman if the movie played out the exact same way.
I find it interesting how you say what you do about him staring at the kid while a voice over track plays, compared to what we saw this episode. The Mando shows more in this episode then he did the last imo. Mainly as the episode shows, it doesn't tell. The perfect examples are the Mandos continued interactions with the mechanic. It starts adversarial, with her clearly trying to extort the Mando, who is trying to make what little cash he has go as far as he can. She annoys him clearly, and he has no plans to do anything for her then what he must. Then he returns, sees the kid missing and freaks out. Once he realizes she has the child and has no ill intent towards him, he softens. Even taking her telling him off for his parenting skills. She is still trying to get more money out of him. When she risk her own life to help save the kid, he trust her and rewards her. He doesn't give her "what she is owed". He clearly overpays her, which is why the woman who spent the entire episode trying to extort him, just to play it cool and fails when she sees the money.
The Mando is at his most effective and tells us the most about him when he says very little. When he lets the silence do the talking. That is why he is Lone Wolf/The Man with No Name. Because his smallest utterance say a lot more, because he isn't a talker.
Also I am going to wager the ending of this episode is probably going to be the biggest "reveal" of them all.
