Betta Fish: Betta abuse at pet store?

Hey guys I work at a pet store in Australia and I recently, with the approval of the head manager, redecorated the betta tanks, deep cleaned them and put live plants in them. This is because I know bettas need mental stimulation, a place to hide and a more interactive home than an empty tank. My second in charge manager recently came back from leave and was pissed about this. She sent a chat into the group saying who did this and to “explain themselves”. The plants I used were still on the system to be sold. I made sure u could see the tag so people knew and even sold a few, then replacing them in the tank. It was a perfectly fine system and looked amazing. I just came into work today to find the tanks stripped of the designing I did, left empty apart from a few logs. I am PISSED. I don’t know if this counts as animal abuse but I am so upset and angry at her for doing this. The fish look miserable and the tanks look like sh*t. Is there anything I can do?? I am mostly just ranting to a community I know will understand my feelings😔🤬 I’ve included photos of before and after.
PS – the plants u can see in the tanks are old and rotted