"Faith" in one's friends and family is trust based on experience. Funnily enough the amount of trust one has in their family depends very much on the relationship one has with their family. It's not blind faith.
"Faith" in the ability of an aeroplane to safely fly 11 hours is trust based on the knowledge that science and engineering have been able to develop technology that takes advantage of an understanding of the natural laws that govern the physical world. It's not blind faith.
JWs would argue that faith in the interpretation of the Bible as presented the WTS is not blind faith. They would argue that it is trust built up on experience. The issue is that if you are talking about the modern day claims of the WTS then you cannot name one thing they have got right, especially in advance of the event. If you use the Bible to validate your claims then it is impossible to prove. For example, claiming trust in the prophecies that humans will be resurrected because Jesus resurrected people is not trust based on experience. It's trust based on an unprovable claim made 2000 years ago.
As a Witness I made the claim many times that the Bible basically had special dispensation on this matter. Somehow, the more claims I believed the more the evidence stacked up. All it really is, however, is a fallacy. Being able to demonstrate many self referencing claims of authority does not increase the level of verifiable evidence.
It WT world, however, the more you accept the fallacy, the more you claim to have this type of bogus faith, then the better Witness you are. It's then a small jump to having to demonstrate the depth of your faith through the level of the your JW approved works.
Trust (faith if you wish) based on fallacy is dangerous regardless of who peddles the fallacy.