Ok lots of good discussion here. I really appreciate everyone's input. While everything I am about to say is directly based on above comments, I don't have the time to specifically quote each bit of text and anyways, it's addressed to everyone that is participating anyways.
in no order of priority or chronology...
1. Limited changes at this moment doesn't means any (and probably everything) isn't on the table. I said These changes, not only these changes.
2. There's a simple element of practicality on the scope of changes at one time. Some small stuff might just pass ERC by fiat. Other small scoped changes can often be accepted by just a couple of batreps as a sanity test. Larger changes, in quantity and quality, will progressively push this closer to the ERC treating this as a new list and giving me the full 18 treatment. I am trying to get changes in the TP at a faster tempo for this list than average. Immediate benefit, even if containing smaller scopes, at a fast iteration is a win. Waiting 2 yeas while we dredge up the tests to finally show balance for approval jsut means no benefit for players in the interim.
3. Do recognize, as excellently noted by Dave, that this is a long time approved list (we can debate power and sanity and quality in another thread) and even more importantly recognize that unlike most of the NetEA lists, was cut from whole cloth by GW. We tend to treat those lists with a bit more caution than typical, just out of respect. Likewise though, that's not prevented changes, sometime deep structural ones, from occurring over time on GW produced lists (Look at the 1.0 Tau 3rd phase list from FW and the current incarnation). This also means, for those that play and have legacy collections, that the GW original lists are archived and supported via systems like Army Forge. They are no less "APPROVED" than anything else for both tournament and friendly play.
4. This thread and document in the OP had its genesis in the period of time that I was acting Marine AC. It therefore had a huge number of ancillary concerns that are not applicable (or at least not as much) today. Most importantly being that I guess I am actually the subAC on white scars, vs giving some attention and thought to a problem list with a minimum of effect while we didn't actually have someone to run it. That's not the case now. Let's not also forget that direction and attention was being funneled towards the RG list for the final push. So it's not illogical to expect a somewhat more aggressive set of tests, trials, and other doo-dads to be attempted,
provided we can get testers5. Leading to this point: Yes lists have to inspire tests. Equally though, people need to be willing to test, even if they don't like all of the design otherwise it's ants at a picnic. However though just because a trial list is out there and you want to see more changes then shit guys, Go BATREP IT THEN AND SHOW WHY WE SHOULD DO THE BIGGER CHANGE. Seriously the hobby police are not going to fine you because you want more changes NOW and go off the current document. Want scout bikers and think I'm being overly cautious, then DO IT. Seriously, prove me wrong. I love to be wrong! k?
<3 [high fives] Anything else is just noise.
6. We do have a responsibility to not invalidate a collection. That doesn't mean that everything in the collection today is used the same way (see: vindicators). Lots of changes to be had and SOON!
tl;dr
You can stand on me, mates. It's going to quickly move from sh!tty stinky to smelly-farty to not entirely distasteful all the way to pretty-cool in short order.