I'm a fan of thoughtful charop but Optimization/build guides have become a problem for d&d because 5e tried so hard to streamline & simplify everything. Knowing how to optimize without being a disruption requires the player to understand the system well enough to metaphorically read the cards in play between themselves the monsters and (most importantly) the other players to know how & when it's time to break the safeties and go all out right when everyone is thrilled to see it.
Back in 3.x players could read all the guides and learn all the tricks but they still needed to understand their resulting build well enough to avoid being so excited to pop their cork that they waste it in a situation where it doesn't apply or is totally unneeded, most of the hyperoptimized builds in 5e though are rushing beyond the curve every round of every combat & often dominating in social/exploration pillars because of the dominance of charisma+diplomasncy skills being overly condensed or stealth+dex.
Have a solid grasp on the how & when if they wanted to be particularly effective in ways that matter is no longer the important part of build guides so you don't need to consider anything like the old OTT CODzilla & lion totem/charge/shocktrooper type builds so players just default to just "I use [pwn]" in every single situation without needing the luck of aquaman's contrived whiteroom scenario because it is an often an always ready at will that also applies to nearly every situation
Back in 3.x players could read all the guides and learn all the tricks but they still needed to understand their resulting build well enough to avoid being so excited to pop their cork that they waste it in a situation where it doesn't apply or is totally unneeded, most of the hyperoptimized builds in 5e though are rushing beyond the curve every round of every combat & often dominating in social/exploration pillars because of the dominance of charisma+diplomasncy skills being overly condensed or stealth+dex.
Have a solid grasp on the how & when if they wanted to be particularly effective in ways that matter is no longer the important part of build guides so you don't need to consider anything like the old OTT CODzilla & lion totem/charge/shocktrooper type builds so players just default to just "I use [pwn]" in every single situation without needing the luck of aquaman's contrived whiteroom scenario because it is an often an always ready at will that also applies to nearly every situation