In my Church they spent weeks preparing for the new language changes and explaining the reasons for them.
If “consubstantial” is that difficult, one could seek out assistance. Or simply based on dead reckoning of its placement in the creed figure out it is a more elegant word for “one in being”.
Consubstantial is not the "new" language, it is a return to what the creed was in Latin....Consubstantialum Patri ....were words in the Credo sung in Latin.