A player who uses scripts&bots in the Tournament will use it on other servers as well. I dare to say they are using them more on random servers, cause in the finals, if you are banned and MH will delete your army, your team will curse you and blame you and you will feel the shame much more.
A player who likes to do multi account will do that on every server he plays, I have no doubt.
The difference is in the finals you can see 10k accounts, on a com server you can see 1k-2k accounts. But the % of cheating is the same, people are the same.
The system behind tournament is good, but it needs some minor adjustments. You want to play finals, you need to qualify first ! Nice, this is a good thing !
You can only reach in the finals if you are a top player in one of the few qualification servers. OK, again, the idea is good.
But then why Travian gives away thousands of free wild cards, days before finals starts ?
Majority of those wild cards will turn into multi accounts/tech accounts/private farms etc.
Before the start of the current finals, that we play right now, TG gave away less wild cards than previous years. And guess what ? This year there's less cheating, less multi accounts, less bans compared with last year at least 
More is needed to be done, even less wild cards please ! 100 wild cards will be enough in my opinion.
But what the Tournament needs to change asap is the reward system !
Those prizes attracted a bad crowd ... bounty hunters, those guys will will do anything, every cheat from the book, in order to get their hands on a precious tablet or the latest smartphone.
They are ruining the game, but if you take away the prize, or change the reward system completely, our game and our tournament finals will become more competitive, a better place overall.