Yes. You do underestimate power of cheaters. It's 2020, not 2006. They don't use simple bots that bind to some RAM addresses and call some functions in your client. They use neural-networks and image analysis to read information from your client. They move mouse and press keyboard 'like real human'.
You can't block all bots, after long fight on Kasteria (new client, new packets in client, statistical analysis of 'game' of every player based on movies), we gave up and decided to ban 2 kinds of bots: exp bots and war bots (auto ssa, auto energy ring, but that bot is hard to detect as players just bind mouse move to hotkey to make 'auto equip').
If you are talking about 7.4 style.. my friend had UH maker on real tibia that was 2nd HIGHEST magic level on world Secura.. and you want to ban UH makers to make it 'real'?