Why this Consecration is certainly historic:
1. It is the first consecration of a Traditional Catholic bishop in the United States who is not Sedevacantist and/or Thuc-line. This will also be the first bishop whose priestly apostolate was primarily in the United States since Fr. Williamson was chosen in 1988!
2. Even today, there are not THAT MANY Trad bishops in the recognize-and-resist Traditional Catholic world. A Bishop is still a very big deal. Unlike the Thuc-line bishops (which inspired an article called, "Two Bishops In Every Garage", the SSPX/Resistance world is nowhere near there yet. Right now the neo-SSPX and Resistance have a total of 6 bishops, most of whom are over 70, and the rest of whom are in their 60's.
3. It is the first consecration of a new generation of bishops. Fr. Zendejas is 54 years old. All the current Trad (non-Sede) bishops are of an older generation. Of all the "old school" priests formed by the SSPX over the years -- 70's, the 80's, the 90's, the early 2000's -- Fr. Zendejas is the first to be chosen for consecration.
4. Closely related to #3, this is the first bishop that thousands of SSPX/Resistance Catholics nationwide knew as a priest for years -- even decades -- before he became a bishop. Very few Catholics are old enough (or Trad long enough) to have known "Fr. Williamson" for 10 years before he became a bishop. I didn't know Fr. Faure at all until he was consecrated and became Bishop Faure. Same for Dom Thomas Aquinas.
5. Statistically speaking, a 54-year-old has a lot of life left in him. He could easily spend 2 or 3 more DECADES as bishop, affecting the Traditional Catholic world all the while.
6. Americans should be particularly excited, because Fr. Zendejas' sphere of activity is right here in the United States of America. Sure, he's Mexican, and he speaks Spanish better than he speaks English, but he still has been in America a long time, so we've kind of adopted him! Let's put it this way: he has spent the majority of his days living in the United States, since about 1998. He might have an accent, but he doesn't seem "foreign".
7. Even though he's not being given any jurisdiction at his consecration (that would be schismatic!), and we can't call him or consider him the "Bishop of North America", nevertheless in the practical realm he's going to be "our bishop" since his apostolate will continue to be in North America. He will always be just a long drive away -- not a trans-Atlantic flight away.