While I don't think a smaller rig should refrain from taking a larger site if it suits them better, I don't think we need to get rude about the frustrations of folks with larger rigs.
The folks with these monster rigs have to understand the limits of there length...I did and they should...Buying an RV and choosing a length, should be should be well thought out before the purchase,not after!
That's what a toad is for,scouting out before committing to a site.And there is the internet nowadays for a phone call or spots available.
If 'ya snooze 'ya lose...