I've never given a second thought to screens/light clay.

Even as an offensive player, I never really went for what I would consider gimmick offense: webs, screens, weather, TR, etc.
They always felt a little inconsistent and unengaging MU fishing. I did rock M-Camel TR in gen 6 and in gen 8 my Maractus Sun was beyond based
+2 252+ SpA Maractus Solar Beam vs. 0 HP / 4 SpD Dragapult in Grassy Terrain: 306-360 (96.5 - 113.5%) -- 81.3% chance to OHKO
Ox Hail last gen was fun as well, but I digress.
SV is wildly MU fishy. It's not rock, paper, scissors bad but not
that far off, either. Screens is not helping the situation.
Higher skilled players can better navigate a bad MU, but your average player will be loading into massive uphill battles here and there, depending on their team.
Citing Ace, or Infiltrator just proves the point that unless they have specific mons, or a certain team archetype, then some monster set-up sweeper who can Tera past their check will steamroll the match. Needing to have the same pair of scissors on every team isn't a good sign. Don't get me started on the cringe "use brick break, psy fangs" rhetoric. Be serious.
Light Clay isn't broken, but it's definitely not healthy. All is does is increase the MU fishing. It's just another strain on the builder.
That opens the question that seemingly cannot be answered: "What do we do with unhealthy elements that aren't technically broken." Or, sorry, it can be answered, it's just the solution seems to be: "We just shrug and keep them around."
I simply see Light Clay as another King's Rock

The arguments are almost the same lol
"Bring something specific to counter it. If KR is broken then Inner Focus mons will rise. Just use Covert Cloak. Use priority moves. You have to accept that KR will be a big determining factor in most games. I think KR is healthy and niche."
LC won't get banned, but let's not pretend it's adding anything to the meta. It's just more cheese in the cheddar factory of SV. It's for players who struggle with positioning. Instead of sacking something and bringing in your set-up mon in on something it can set up on, just boost in front of basically anything due to magical damage reduction. Don't worry about eliminating all the checks before sweeping, that RK can't quite KO now due to magically increased bulk.
I have zero struggles vs screens, for the record. Since I am actually good at offense instead of pretending to be, I get my momentum going vs screen cheese like 90% of the time. I personally don't care. But again, let's be serious. It's not healthy, it wasn't designed for 6v6 singles, and if it was gone the only players who would miss it are also the players who miss King's Rock, for the exact same reasons.
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p.s. some cool replays of full RU or lower mons on OU ladder:
Psychic Noise Yanmega -
Comfey <3 -
Scarf Craw -
Screens lol