Malta develops cryptocurrencies for their own reasons, there is not a lot of money in the state and the arrival of any funds greatly helps the development of the country. Only for this reason Malta is loyal to cryptocurrencies. Scammers in any country have enough, Malta is definitely not to blame for this.
Malta has a progressive government that seeks to develop the country and there are already many cryptocurrency projects registered there, so I think that if a license is issued to a project, they checked the project.