Excellent observation and question. I'm relatively new to Texas and relatively new to this forum. Securing my CHL (or rather LTC) was something I did as soon as I was able. But I am not at all new to such processes, having successfully negotiated the process of securing a non-restricted carry license in New York State (I do NOT "luv NY") years ago, Pennsylvania (subsequently and far more easily), and Utah (non-resident) before moving to Texas.
In every instance (except PA where training is not required), the instructor said or suggested things that just aren't so. I don't recall the number of hours required in NY or Utah, but my sense there as here is that due to the state's mandating the duration of the training, the instructors feel like they need to fill the time. And since there really isn't all that much that needs to be said (there are a few really important things that need to be repeatedly emphasized), the instructors talked too much just to fill the time. And it's easy to be incorrect when you're talking filler.
I think "gun people" understand that the training that goes with qualifying for a license/permit is the necessary minimum. We take seriously knowing the law, and we learn the best resources to help us do the necessary research. One should expect CHL/LTC training to emphasize the basics and do so accurately. It's when instructors need to fill time that they easily drift into inaccuracy. I gotta say that my TX training was about 60% wasted time. It was truly painful. I'm sure the instructor is a great guy, and I would happily spend a day at the range with him and enjoy some time at a watering hole following. But during the course he was definitely reaching to fill time without enough important stuff to say.
Solution? Spend more time on the technical aspect of shooting and less on the legal. Cover the latter accurately and concisely. Repeat. But spend more of the required time on safe gun handling, various types and sizes of firearms, and range time. That part of the training could be expanded easily, interestingly, and with more room for opinion (e.g., I like .40 better than 9mm because ...) without getting into stuff that "just isn't so."