I used to collect vintage guitars, too many for girlfriends/wives to tolerate he he, but I can tell you about maple boards.
Unlike rosewood, maple gets "dirty" and some of that is unavoidable but worn in necks could also play well, but...
the dirt on the board, like on any dead wood in forest, gets in and breaks the wood down rotting it slowly as that's nature's way of turning dead trees back into soil that gives life back to the forest
What you don't want, obviously, is for a maple board to get so dirty and rotted out as to start deteriorating like Eric Clapton's famous "Blackie" strat which he had to retire when so much wood had worn off that the fret ends were sticking out and making it uncomfortable to play.
But you also don't want to clean it back to a pristine state and refinish it as that wrecks that great played in feel and just looks funky.
My luthier took my well worn, far more than yours, old tele neck and cleaned a lot of the black mold/dirt from it and then lay some dull shellac or lacquer on it for protection. He saw to it that you couldn't see it as an add on and there was no shiny area which often comes with bad restorations. It was enough to protect the neck from further deterioration but didn't hinder the worn in feel and there's no detectible fiddling with such a vintage guitar. It just looks a few years newer than 1965 without looking refinished (which would hurt the vintage value greatly). I saw a 1950 Broadcaster that had more than $10,000 taken off the value simply because the original owner lightly refinished the headstock to make it retain its new "look".
There's a troubling feel of a totally brand new guitar which often have plastic feeling necks (especially on maple fretboards) but also unplayability when the guitar has seen better days. My 1941 Vega's ebony board was so cracked and chipped to death that it had become a wall hanger in that state. But between a brand new plastic feeling neck and one that is dead on arrival are many years of a well played, excellent neck which gives you the best it can offer. I love necks more than a decade old but with original frets without too much damage, and if I could only bottle that and sell it!
Your Ibanez RG neck looks to still have a lot of good life in it and is past that newish plastic feeling maple necks can have in their first few years of playing. One thing a lot of people who like rosewood hate about maple is that the fretboard of maple feels slippery and doesn't hold bends well. But that's not as much the case with a well worn maple neck which has some grit and similar gravitas as rosewood as on your example.
I can't say anything about the body, but to each his/her own on that and I am sure many superstrat players wouldn't be seen playing any Jem.