There is no right or wrong, just a matter of personal opinion; my observation has been that, generally, DnD players do find the system exciting ( otherwise, presumably, they would play something else ), and video game players generally expect and want something different ( which is why they don't play DnD ).
I mean, there is right and wrong depending on what game you design. Most system games require unpredictable element - otherwise it will quicly beome dull and repetitive. Less so in PvP as playing against human opponent provides variety. A computer game will always be predictable, so it needs unpredictable element - it doesn't need to come from chance-to-hit though. Invisable Inc uses limited view and procedural level generation, Into the Breach unpredictable enemy spawns, FiraXCOM and DnD roll to hit.
