We've been lot owners at SVRR for several years, and were there this summer (we waited a month or so, until SV Health Authority told me on the phone that it was 'safe' to go). Just thinking aloud ...
I'm not sure I totally share your observations, but I don't have your long history at SVRR. There are certainly things that could be different/better.
A couple or three years ago I was quite impressed to find one of the owners down in a 'hole', helping find and fix the cause of a leak at one of their campground sites.
I've always found the other owner and his staff at "the office" to be readily available when I wish to discuss something.
This year we both commented (among ourselves) on the need for repairs to a peripheral road, but didn't (yet) complain/ask about it.
Park Wifi is provided by the local communications company, and it became clear our first year that reception was a function of proximity to one of their towers. I chose to rent a DSL modem from the comms company, and use my VZW Jetpack as a backup. Not a lot different from what I've experienced at numerous campgrounds/parks.
One significant change we've seen the last two years is the rate of progress on the planned extension of the park. This was a part of the pitch we received from one of the owners when we previously considered buying a 'new' lot, although we eventually bought from a private owner.
At this point we are considering never going back.
You pays your money and you takes your choice. I wouldn't attempt to influence your decision.
