The oak walker can take out defensive tower behind walls, much like Chiron but in melee range.
That is considered exploiting and if you get caught expect a holiday

Same as jumping the back wall sure in can be done but its not in the sprirt of the game.
Worst part about that is if a tower hits your pet it auto reacts and charges off through the wall. One of the reasons I dont siege much anymore tired of all the hack accusations.
Not trying to have a dig as I have said before Wd/R is great fun and I enjoyed playing it immensely. When i first rerolled to Scout I would still play Wd/R in siege (the Uber speed in siege extra dodge and yes throw hits like a firetruck)
PvE Wd/S does more dps with Morale boost Secret agreement and ofc Chiron (Mine never seems to miss gets dodged abit though)
Wd/R on the other hand can build alot from chaining Crit hits from Oak Walkers Sepal Stab.
Kinda sucks that my server is all neg aggro. All of the dps run 2 recon X, and my Rogue side is gone now for Warrior. I do have a r/wd alt tho unfortunately it costs to much to gear and lvl both toons.
At the end of the day we all have differing toons and opinions, The best thing about the 5.0.1 revamp of Wardens is that many have become viable endgame options. Great to see runs that aren't just Tank healer and r/s w/r all though its slowly becoming Runes of Warmages