That's normal for any professional tool, but it's not normal to be so upset about it. A saw will take your finger off, but you still want to use it for woodworking.
No: that in context is a plaster cast saw that looks vibrational but is instead a rotational saw for wood, and you will tend to believe it has safety features it was really not engineered with.
For plaster casts you have to have to plan, design and engineer a proper apt saw - learn what you must from the experience of saws for wood, but it's a specific project.
