It actually still does, because while disintegrate in 2014 specifically mentions the wall of force, it also specifically mentions how you have to be able to see the target.
The wording simply says "a disintegrate spell". It does not say what it has to be cast on or wether it continues to travel towards the real target afterwards. But the implication clearly is that you have to hit the wall. Thus, RAW, even with specific overriding general, you cannot target the wall because it is invisible (nothing in its spell description states otherwise) and you can’t target space behind the wall, as it is behind cover.
That one has nothing to do with Crawford far as I'm aware. It’s just plain stupid interaction of several rules. You are definitely intended to be able to just cast disintegrate on the wall.
Some rules are intended in a certain way and just handled poorly. The above case is (I personally think) one of them. Others are actually intended to work a certain way because of designing aspects (like verbal components having to be said at a normal volume) but people simply decide to ditch them anyway, because they like something else better. Both are valid, but they are different.
I actually think it’s a fair restriction for spells that require sight. It imposes a somewhat interesting limit on casters, especially since a lot of spells still do something on a miss.
As I have said in another comment, that is RAW not what would happen:
"You can’t even cast it on something behind the wall, because you cannot target something (or someone) with a spell if they are behind total cover. Total cover is created by being behind completely behind an obstacle (like a wall). This counts even if the obstacle is invisible."
Furthermore, because if you chose an invalid target for a spell, you’d still expend the spellslot but there would be no effect. So you actually spend a sixth level spell a lot to achieve nothing."
It’s very much not RAI I'd say and I would likely handle exactly like you described, but the RAW was so wonky that I wanted to make the meme when I found out about it.
No. If we assume that you have to target the wall it would at the very least stop after destroying the wall.
But by RAW, you can’t even cast it on something behind the wall, because you cannot target something (or someone) with a spell if they are behind total cover. Total cover is created by being completely behind an obstacle (like a wall). This counts even if the obstacle is invisible.
Furthermore, if you chose an invalid target for a spell, you still expend the spellslot but there will be no effect. So you'd actually spend a sixth level spell a lot to achieve nothing.
I would not recommend doing it this way, but that’s what the rules say.
I know that it would be out of character, but now I'm trying to make up a plan how this might work. If Mystery can counterspell, then if you send him along while disguised as someone else, it might be possible.
However, as you've said, it would not really accomplish much anyway and Konsi would never do it.
It’s the Rock-Solo.