1. The celebrant uses a modernist ornament (is not not a gothic raditional ornament) and not uses the maniple.
2. There is no altar cards.
3. Acolytes are dressed informally and do not touch the bell.
4. No stock burse of the corporal nor tray of communion (the pall is used in place of this).
5. The Mass of the Virgin must be celebrated with white ornaments, but these are red.
6. Many women have no veil.
(Google translation)
I don't have a perfect answer to all of these, but for some of them there is a good explanation.
1. (Good question!)
2. Altar cards are just memory aids; they are not sacramentals nor are they necessary.
3. This is also OK for something like a pilgrimage, where a cassock/surplice isn't available. They also didn't pack one because they didn't think they'd be able to say Mass in one of these places. They were probably wearing sneakers because they were good walking shoes for a pilgrimage.
4. Usually the priest uses his own (brass) paten, the corporal (a linen cloth that is purified carefully by the priest) or the pall (square, stiff piece of linen) if a server paten is not available. I think these are all adequate "expedient" means of protecting the Blessed Sacrament when a server paten is not available. This one I'm not 100% sure about. The Google Translation here was quite garbled.
At any rate, I'm giving the benefit of the doubt on this one for now.
5. (Good question!)
6. (Good question!) Though I believe it's already common knowledge that Europe is much more liberal in this department. In general, Europe has slid further downhill than the USA as far as liberalism, morality, etc.