Never mind whether this should, or shouldn't, be our problem. We all know the answer to that. But that won't change until - by whatever means it takes - the teams/coaches are removed from the game assignment process.
So, let's focus on the question. The question is about the penalty for violation of 1-4-5-b. First, let's understand that, by UIL exception, the home team must make any change necessary to achieve contrast with the opposing team's jerseys. Second, also by UIL exception, there is NO PENALTY for violation of what is left of 1-4-5-b after the UIL's exceptions (1 is intact, 2 is modified, 3 is eliminated altogether (justifiably), 4 is eliminated altogether, and the penalty statement is eliminated altogether).
So, when Plainview shows up at Coronado wearing solid red jerseys, and Coronado comes out wearing solid red jerseys, what next? What next is that the Coronado coach is gonna pitch a fit that Plainview is wearing red jerseys. And we get to tell him that, sorry Coach, your rules requires that YOU make the change. Send the bus back to the school and pick up your white/light colored jerseys. You have about 30-minutes to make the change. If you aren't ready to play on time, with white/light colored jerseys, we'll have to hit you with a 15 yard Delay penalty, for not being prepared to play at scheduled game time. So, then he refuses to change jerseys. Now what? Well, the Plainview coach will, undoubtedly, remind us that the home team must make any change. What are the choices, now? Well, even if they are wearing red jerseys, if they are ready to play on time, start the game (no penalty), we'll do the best we can, and send in an Incident Report. But, what if Plainview refuses to play until Coronado changes their jerseys? Forfeit the game (in favor of Coronado)? If Plainview simply won't play, yeah. Then we'll file the Incident Report, and let "upper management" resolve the dispute.
Thankfully, these extreme situations are rare (next to non-existent). But, the potential is always there. And, since the UIL's rule is so dramatically different than the NCAA rule, we simply must know this "exception."
Now, understand. This rule has nothing to do with the jersey NUMERALS rule. That is a totally different rule - 1-4-5-c. The UIL does have an exception to a portion of the NCAA rule, requiring 'white, or light colored' numerals when on dark jerseys, and 'black or dark colored' numerals when on light colored jerseys. Otherwise, the UIL does NOT take exception to any other portions of this rule, including the penalty. At the kickoff for the first and third periods, the R will declare the ball ready for play, then immediately stop the game, and charge the offending team with a team time out. Following the time out, and then the kickoff, the offending team will be penalized 15 yards (before the LTG is established, FYI). Before the first down of the second and fourth periods, the R will declare the ball ready for play, then immediately stop the game, and charge the offending team with a team time out, OR a delay of game penalty if they have exhausted their team time outs.
Again, very unusual situations (although certainly not rare, in this day and time). The good news is that the UIL's penalty matches the NCAA's penalty.
Got all that? Good.