Radisson announced completion of refurbishments including the aquarium in January 2022 so it should have no longer been in "bad shape".
https://www.radissonhotels.com/en-us...erlin-redesign
I have fond memories of sitting in the lounge under the aquarium working on my lap top. I found the hotel very comfortable. I was very sorry to read this.
Thank goodness the explosion was early in the morning with few people in the lobby.