Are verbal and somatic components worth the added complication?
If you are a player or DM who actually enjoys the whole component aspect of spellcasting... then absolutely they are worth it. But it's probably then also worth your time jerry-rigging the current system to be one that is a bit more compiled, calculated, and organized.
I suspect that the component aspect of spellcasting was one where Mike & Co. knew that probably 95 to 99% of the playerbase just ignores for whatever reasons-- more complicated for little gain, not fun, etc. etc. But rather than completely remove it from the game (even though that's what most players would do anyway)... they decided to leave the basics in (including individual material components) for those few players who would be upset that they were missing (because after all... it's no skin off anyone's nose if each spell has a single line with V, S, or M plus a small specific object listed-- easy enough to ignore).
So they gave the basics to it, but also weren't overly vigorous in determining how the system actually worked, plus gave countless workarounds (component pouches, arcane foci) for those who wanted to ignore them. The only problem now is that because they only did the basics, the methodology needed for a more vigorous component system is revealing more flaws in it, and is why Jeremy's Sage Advice rulings aren't always the most useful or comprehendable. Because I don't know if it was built with that sort of intense logical structure in mind.
Which just means that if you are the type of person who wants to know all the ins-and-outs about how/where/when Verbal components work (the volume they need to be said at, the length of the incantation), Somatic components work (hand motions or finger motions or full arm motion needed, one/two hands free, presenting a holy symbol or foci *being* the somatic component for certain spells) and Material components work (how much arm/hand movement is necessary to get them out, do you need to make the caster find individual components in the world etc.)... you have to almost build the system yourself from the ground up. Because otherwise, there will probably be holes as the guys at WotC didn't really think it through that much because they knew most players wouldn't care either way.