“PLEASE DON’T CONCOCT THINGS IN THE NAME OF POSKIM. RAV OVADIA SAID TO RECITE HALLEL WITHOUT A BRACHA – WHICH IS SIMPLY RECITING PRAKIM OF TEHILLIM. THAT IS A HUGE DIFFERENCE. Rav Ovadia Yosef (Teshuvos Yabia Omer 6:O.C. 41)”
This is a common misconception. According to halacha, saying Hallel even without a bracha is not the same as saying Tehillim, and there are halachic problems with saying Hallel even without a bracha on a day on which one is not supposed to be saying Hallel.
There are shitas that hold that it is assur to say Hallel without a bracha on Yom HaAtzmaut even if they feel that the day is a day that should be celebrated.
I believe that those people who hold that Hallel (w/o a bracha) should be recited, often refer to this as “saying Hallel on Yom HaAtzmaut” (and don’t feel the need to add the words “without a bracha”). Of course, it doesn’t hurt to clarify for those who might misunderstand. But someone who does not do so is not saying something incorrect (since they didn’t say “with a bracha”).