Folks are overthinking this.
The club's primary goal is to make money - "no revenue, no mission." Of course, having a winning team will help recruit players. But, the primary focus for pay-for-play soccer is to make money. Please understand this.
So, if your kid is sitting on an RL team and doing really well, your club would much rather recruit a kid from another RL team or NL team to bring in new revenue. You can question the decision, but you'll be told "we see potential... her tactical skills are great... blah blah."
Use this to your advantage and take your kid to another NL program and now that other club will be happy to get new revenue.
In club circles, clubs that bring up RL kids are doing so only because they can't keep the NL kids or can't recruit kids from outside the club.