Petition to stop calling things that are 'trash' 'mid'. 'Mid' means middle. I would not be upset by watching something that's mid but I wouldn't be happy about it either. I take it that if you can't be bothered to watch it even for free, it's probably just 'trash'
Sharknado isn't fun. Being a bad movie on purpose is just cringeworthy. Bad movies are fun when they're a serious (delusional) effort that failed miserably.