Blah blah upon blah blah or precept upon precept?

Isaiah 28:10–13 (LEB): For it is blah-blah upon blah-blah,
blah-blah upon blah-blah,
gah-gah upon gah-gah,
gah-gah upon gah-gah,
a little here, a little there.
For he will speak with stammering and another tongue to this people, to whom he has said,
“This is rest; give rest to the weary;
and this is repose”; yet they were not willing to hear.
And to them the word of Yahweh will be
blah-blah upon blah-blah
blah-blah upon blah-blah
gah-gah upon gah-gah
gah-gah upon gah-gah,
a little here, a little there,
so that they may go and stumble backward
and be broken and ensnared and captured.

Isaiah 28:10–13 (ESV): For it is precept upon precept, precept upon precept,
line upon line, line upon line,
here a little, there a little.”
11 For by people of strange lips
and with a foreign tongue
the Lord will speak to this people,
12 to whom he has said,
“This is rest;
give rest to the weary;
and this is repose”;
yet they would not hear.
13 And the word of the Lord will be to them
precept upon precept, precept upon precept,
line upon line, line upon line,
here a little, there a little,
that they may go, and fall backward,
and be broken, and snared, and taken.

The LEB stands alone in containing a rather curious translation here with a note saying "In this context, the Hebrew expressions tsaw-tsaw and qaw- was are likely meant to sound like baby talk, but they could mean "command upon command" and "rule upon rule." The NAC commentary and the UBS translation agrees with the LEB.

The UBS says, "The Hebrew is tsaw latsaw tsaw latsaw, qaw laqaw qaw laqaw, ze‘er sham ze‘er sham. njb transliterates the Hebrew, but this is not very meaningful. frcl (1997) is more daring by using baby talk in French: “Listen to him: Blablabla, blablabla, et patati et patata” (similarly gecl in German). For languages in which there are no set words available for baby talk, reb provides a good model with “A babble of meaningless noises, mere sounds on every side!” We prefer this model, but a footnote should be added, explaining that the Hebrew words here are most likely babbling sounds made by babies. Other possible models for this verse are:
• Truly, all he says is a jumble of meaningless words.
• All we hear from him is like the babbling of a baby.
• All he says is ‘Blah, blah, blah’ and other nonsense sounds.”

The NAC says, "The message in v. 10 is made up of a series of monosyllables repeated several times. The meanings of these words are somewhat mysterious. (a) They could be the stuttering words of a drunk, which makes about as much sense as the babbling of an infant. (b) These words could be referring to letters of the alphabet, which a teacher might drill into the heads of students by repeating them again and again, thus showing the simplistic and pedantic nature of this repetitive and boring message. (c) Those who see these words as a mocking summary of Isaiah’s message view ṣaw as an abbreviated form of “commandment,” “filth,” or “vanity” and take qaw to mean “plumb line” or “rule.” Chapter 18 vv. 2 and 7 have already used qaw qaw as a means of describing speech that is unintelligible, so that influences the sense here.
Since this commentary takes these strange repeated words in v. 10 as Isaiah’s derogatory description of the speaking of the ungodly prophets and priests (28:9), the first option fits best with the recurrence of these words in v. 13. Isaiah is saying that their babbling nonsensical repetition of words sounds like the gibberish of babies. The words should just be transliterated in the English text and given no meaning, demonstrating it as meaningless chatter."

So what do y'all say? I personally think the LEB makes sense here, even though it does sound strange.