If Gaza Has No Electricity, Then How Do They Explain This?

We’ve been told, repeatedly, that Gaza is in ruins, its inhabitants without electricity, water or other basic necessities. It’s a wasteland thanks to Israel’s constant attacks. Then how do they explain this video?
Rumble: Men In Gaza Celebrate Hamas Attacks On The Big Screen At Al-Shifa Hospital
https://rumble.com/v3twb2s-men-in-gaza-celebrate-hamas-attacks-on-the-big-screen-at-al-shifa-hospital.html