Yes, I understand that most CGs were built in a time when an RV 30'plus was considered huge. My sig rig is the only one owned & there are no plans to go larger or smaller.
Power being forward or back is of little concern. Enough additional extensions are carried for whatever is faced, including an adapter for marine 30amp shore power.
Sewer is more of a nuisance. I happen to have one of those built in hose systems that is connected 100% of the time at the tank end & is stored by shoving it into the storage tube next to the tanks. The dump must be less than 6' from the sewer hose storage compartment door. This is potentially a major PIA for some at a FHU site but for us, most of the time, we hold & dump on the way out either by shuffling within the site to reach the ground pipe or use the main CG dump.
Then there are the CGs like the one we are in now. FHU site but we can't reach the ground pipe. The sewer is near the back & backing to it is impossible because of bushes & a ditch. No real big deal, even though the CG does NOT have a communal dump. Fortunately we arrived with tanks empty & are only here for 3 nights so we will haul it & dump & the next stop.
Just one of those things that make you go GRRRRRRR, especially when paying over $50 a night. We are here for a bluegrass festival so it is not like we are here for the pool, putting green, tennis court, tiki bar or the rest of the resort stuff.
This CG is like so many, built for RVs of another age, & never updated for the monsters that we drive & pull today.