marbehshalom,
Yes, there are full beryas.
I personally was shown the filtration process of Tropicana orange juice performed by an expert. There are definitely beryas in every cup. There are also a lot of fragments. Pretty disgusting. The beryas are not so small and are clearly nireh l’anayim. They are just covered with juice. When filtered, and carefully washed off, you can see the scale-bugs, if you know what a scale-bug looks like.
Reb Chaim Kanievsky shlita was told incorrect information. The article says what he was told, which is not accurate. He actually writes himself in his sefer on chumash that the Chazon Ish filtered all citrus juice because of these scale-bugs.
In more recent developments, mites are also being found in the juice. I just spoke to two experts on Erev Yom Tov who confirmed there are enough mites to be considered a miut hamotzuy.
Most of the articles released to the public which permit the juice are full of mis-information. The attitude of the kashrus organizations has been “it’s kosher. We just need to figure out why!” It’s a very sad situation.