What a weird technicality to get caught up on. Disintegrate destroys wall of force. RAI over RAW any day. It makes absolutely no sense that you can't shoot a disintegrate wherever you want. If you're so worried about the wall being invisible, then target something behind the wall. It's a ray, and it hits the wall, and both spells explicitly say the wall is destroyed. Disintegrate also explicitly can target walls of force, even though it has the "target you can see" caveat. If a player tries to use the explicit counter to wall of force against it and you catch them on a technicality, you're harming the collaborative story.
Don't exploit poor wording when the intent of both spells is clear. No one wants a DM rules lawyer.