Interesting interview. Here's the thing, though. I know that LAFC _does_ have a relationship with LAUFA and La Premier (which are closer to LAFC's location and both fully funded). There are kids at both clubs at different age levels who were placed there by LAFC coaches because they'll get more playing time and with the understanding that they are still in the LAFC family and may come back. FCGS is just too far away for most of these players, but I suspect that if LAFC had a kid out east that they were ambivalent about, they'd talk to FCGS or Legends about placing them there for a bit.
I also don't think that having the MLS clubs leave the DA will do much to mitigate the poaching. The "scouts" will just go watch the non-MLS DA matches and grab the kids they want. There's even less incentive to play nice because they're not even in the same league.