I think we may be mixing things up a bit. (I am only speaking of the US version here.)
The Liturgy of the Hours (Christian Prayer, Breviary — all the same) exist in only one current edition (that has a couple of different forms) and does NOT apply to the Ordinary and/or Extraordinary Usages of the Latin Rite.
The current US edition is the child of a transitional edition from the early 1970’s (71?) that was first translated and updated (reformed) for modern use into English from the Latin. The older editions mostly fell by the wayside. However, if one is not under an obligation to use the current edition, then really there is no problem for private use of the older forms (editions).
Latin is having quite the revival, but if the person has no skills to understand the words then there is little point, since it becomes an empty exercise.
Peace