Except that you had Town Portals in Diablo. In Inquisitor, you have Spend 20 Minutes Walking Back To Town.
The real issue in Inquisitor's combat is that enemies all run as fast or faster than you, almost all of them are melee, and they're all capable of stunlocking you. HP bloat you'd think would be a problem, but it really isn't as much as you'd think - individual enemies go down fairly easily because they have no real AI to speak of, it's the huge mobs you have to fight that literally constantly drain your health faster than your potions can heal it that are the problem. The game literally devolves into an HP in vs. HP out equation, and mid-game and onwards there are literally no potions available that are capable of healing the damage enemies can do.
There are other really obvious and stupid mechanics/systems design problems too - like spells that allow priests to literally instakill every enemy on the screen, while the warrior has absolutely no equipment scaling past act 1 of the game so just gets weaker and weaker to the point where the game is near-impossible to finish using that class. I even cheated myself to level 100 as a warrior, maxed all my skills and attributes to numbers 3x higher than are possible to normally get. The game was still really fucking hard to the point of being unplayable.
And if you think the orcs are bad, oh man, you haven't seen anything yet - try those ghosts that can kill you in literally less than 1 second by spamming lightning magic at you, even with high resistances, and who take about 20 seconds each to kill in melee. I literally do not know what the fuck the developers were thinking in designing this game. It's like it was never even playtested once.