Term for strong/weak words (in context)

Solution 1:

You're right. Nouns of any sort are much stronger than pronouns.

There are thousands and thousands of nouns, so each carries a lot of meaning, to use the Conduit Metaphor. There are only a few pronouns, however, because they don't have any intrinsic meaning, only type codings -- demonstrative, masculine, plural, whatever.

This is what pronouns are for -- to substitute for nouns by leaving an id marker, thereby not requiring us to identify somebody again. That's why pronouns are unstressed and often reduced by loss of (for instance) the /h/ in /hi/: /ɪzi'ðɛɹ/ 'Is he there?'; or the /y/ in /ay/: /amənə'gonaw/ 'I'm going to go now'.

What one wants in a pronoun (as I said in an article about "singular they") is

"... a word that readers can zip over rapidly, with just enough referentiality to point to the proper individual without distracting anyone from what the writer wants them to be thinking about. That’s why we use pronouns instead of full descriptions in the first place."

Solution 2:

You're right that "people" calls attention to itself, and that the pronoun works in this case in a supporting role, serving to let "Jewish law and tradition" be the most important part of the sentence. Pronouns are by definition less assertive than nouns, requiring some referent, whether explicit or implied.

If someone says "John is here, " you know who is here; if they say "He is here, " you have to ask "Who?" unless you already know.