Don’t worry, it’s a 14ply carver deck 
The Holypro I have is 16ply and feels right with 74kg.
Every deck has pros and cons. The Trampa deck is really nice for “normal” riding and jumping (if not higher than about 1 meter [3 feet]). With normal riding I mean no heavy off-road (at least not fast). The deck is very comfy and you can ollie/jump-off like a king which is great. On the other hand the deck bends and twists which gives you less control in (heavy) off-road conditions. I rode the HolyPro with Vertigo/Infinity trucks (first springs then elastomere dampers), Matrix II trucks (with red shock blocks) and E-Toxx trucks. All of them felt good on this deck.
Then I switched to the Haero Bro with E-Toxx trucks. It felt good and stable but after some rides I switched back to the HolyPro deck. With the wide deck I couldn’t do very tight turns, I need the overhang of toes and heels. Meanwhile I use the Bro with Matrix II on the Jumpinator II and can steer better with a different technique (more body shifting and less with the feet).
Then I switched to the stiff MBS DWII deck and Trampa trucks with elastomere dampers. The same trucks which were great on the Trampa deck (carvy and stable at speed) are very tricky on the DW II deck, uncomfortable, super super carvy and very unstable. But that’s the only setup which works for me when riding flow trails in bike parks. 
But I often get wobbles and it’s very hard to control especially at speed.
Bla bla bla 
just a quick general review for you
Good choice, also get some red shock blocks. Just a hint, they need a bit compression otherwise the lock nut of the kingpin gets loose (This is the case in 3 of 4 Matrix II trucks I have). Actually on 1 truck I have to re-tighten it at least once each ride but I still like the trucks. If you have a 3d printer you could print custom bushings (different flange thickness) if you ever face this problem.
The deck itself is like a spring. When you push it down and use the energy to pull it up you can jump or ollie quite high which is so much fun., for example when jumping up curbs.
At least you should lift the front wheels a bit otherwise if the log or root or whatever is too big you’ll fall. Or better lift both wheel a bit if you are not riding too slow.
First of all riding through mud and bushes is exciting and you should try it both.
From time to time you need to do some emergency jumps so it’s best to practice it. I’ll never forget my first emergency jump when I rode a narrow trail quite fast and suddenly there was a massive tree blocking the way and I had to jump higher than I ever did before. I could clear the tree but crashed on landing, nothing happend. There was a storm the night before so the tree was fresh on the trail which I ride regularly. Another time there was a large and deep hole in the grass which was almost not visible before.
Small jumps are quite easy with the HolyPro so don’t worry