I taught high school for 3 years ('69 -- "72), although I wasn't an English teacher. However, Lerner's lyrics never bothered me because Harrison delivered them so brilliantly and the words themselves just seemed so right for the context of the story.
I saw the 154-minute version of A Star Is Born many times on TV and eventually had it on VHS. I never noticed any continuity errors, but sometimes they can be hard to catch unless specifically pointed out. For the last 28 years or so, I have watched the 175-minute restored version, which has full sound and a combination of cut scenes and still photos for the missing footage. I'm just thrilled that the longer, restored version was able to be made. I would never criticize any continuity problems it may contain.