Not if one is punching properly, as you've mentioned. The MMA gloves look like a shorter version of what Bruce wore in Enter The Dragon. After the movie aired, one could buy a glove just like that. I did. What I didn't like was that the glove was thick all over. However, I couldn't fully close either fist completely, and I didn't like that at all. I'd be aware of that as well with the MMA gloves. Hopefully, modern technology has fixed that. It isn't so much the punching you have to worry about with the fingers, as it is the blocking. Many styles, and many people, in general, do a lot of open-handed blocking. That is what leaves the fingers vulnerable to injury while wearing open-handed gloves. I've seen the Bruce Lee gloves, and thought they were very interesting, but seemed like you probably couldn't make a proper fist. Modern MMA gloves don't have that problem, if they fit properly and are made properly. Second that. Your fingers is the vulnerable point here.