Yes- definitely. Tournaments are super easy at the moment due to the bots being completely stupid with lances and not being able to match spin or the shield bash/kick players can do as well high-end armour that is pretty cheap to get makes a big difference.
The Arena is more challenging due mostly to RNG in weapons you get, no armour, randomly spawned ranged hitting your back, and having to win 5-10 fights in a row on a single HP pool which on realistic damage means only 1-3 missed blocks out of perhaps 40-50 and never getting hit in the back.
There is much more strategy to the Arena matches while Tournaments mostly consist of taking out the highest level opponent early in the tournament so they are eliminated and if you spawn with bad weapon set you need to get a better set ASAP which is also way easier than in the Arena because you have the option of taking from your dead teammate, from an enemy with only a very small chance of being harassed while you do it because of the limited numbers of bots in the Tournament at one time.
Changing weapons in the Arena is far more challenging- you have to identify where the weapons are that you want, make your way there dodging attacks/fighting 1-3 times with the weapon set you have and don't want.