This happens all the time , the worst cases get presented as typical of type. I've only ever owned multi skin boats,
The first one I owned( own) is built in 1907, I sailed it hard for 25 plus years and is in my shed now. ( 41 ft).She's in a cradle on her keel and has a bow and a stern prop, occasionally when I mess up and bump the prop it falls out because there's no sagging or weight in the ends of the hull. If she was some old carvel she'd be bent over her cradle like an old boot.
The modern we own was built over 1974 for the 75 season and is 4 skins of kauri resorcinol glued. The thing is a rock, nearly 50 years old and has a 20 year old paint job. the cupboards don't move and will open in 30 knots on the wind and she doesn't creak , groan or move.
The op boat is not a pro build and clearly has not been maintained, deck / clamp leaks have been allowed to continue and she's rotted in her planking , the same as any other wooden boat.
What my friend Paul might not have mentioned with his amazing repair and restoration is that that particular boat was also unmaintained, raced hard and ignored, left to rot and was the bargain of the town because of it. It was also not built of proper boatbuilding timber. The variety being the very type Capt James Cook discovered for the English navy in 17sixty whatever , harvested for spars and became profoundly disgusted as it rotted in front of his eyes. You could build a moored boat of aircraft spruce and it'll be light and fast and pretty for a few years I bet, ain't going to be around in 50 years though, or if it is ,its been put to bed with a blanky every night and talked to nicely. Kahikatea is like that. You can encapsulate it and it'll have a good life but it doesn't have have the redundancy /rot tolerance of kauri.
Our multi skin kauri boats are a bit different though , they speak for themselves because they are still there and a restoration , although less than simple ,usually ends up with a nominal 100 year old boat retaining a hand on heart 90 %( plus or minus a small figure )of its original hull and structure. This is no exaggeration, time and time again. Rainbow, Rawhiti,Ariki, Ngatira, Iorangi, Rogue,Ida,Gloriana,Yum Yum, Big Thelma, Little Thelma,Pastime, Janet... etc etc All boats in the range of 1886 through 1895 to about 1905. A restoration of one of those boats usually involves a new deck and beams, some clamp work , some hood end work on skins and often beefing up any fixed frames( of which there are not many because they're a monocoque hull relying on a couple or three stringers a side and the hull lamination/ fixing.(copper riveted nails). Garboard work( where have I heard that before) None of this is easy or inexpensive but the point is that the hull is still essentially the same wood as it was built with.
As I've said before the furtherest you can get from one of these 'restorations' where a few cleats and some furniture get tranferred over to a new hull.
My old boat for example, has the decks she was fitted with in 1907. ( those are 2 skin). Now that... that is very unusual.
Anyway.. the defense rests

run out of time and my wife is pestering me to go sailing, have to go and get on one of them cold moulded multi skin timber boats made when I was at school ( and good grief, that wuz a looong time ago)and see if there's a fish out there.