Accuracy is just as important in TPS games as FPS, see Resident Evil 4 and Dead Space for example where precision shots are basically mandatory unless you're playing on the lowest difficulties. (Though in all of these games, including Remnant, sniping is first-person anyway so it's moot.)
I think we can agree unequivocally on this much, games that can't tell you how useful stealth is have no business trying to do stealth. Having to guess is a waste of everyone's time.
My sidearm is a SMG (currently Spitfire, I believe I got it off the dragon boss?) which is exactly the tactic I used in RE4 and ME2 onward. If there are swarms of little adds then that is totally fine, while if there are big adds I usually want to be sniping them anyway for quick cleanup.