Yes, it is a bold claim. Especially when there are so many amazing taco places. in Austin. We took this one from theinfatuation.com (link below)

Here it is straight from the article:
Valentina’s Tex Mex BBQ is a fusion of Austin’s greatest cuisines: Tex-Mex and barbecue. There’s nothing else quite like this food – especially their breakfast tacos. The foundation is the phenomenal flour tortillas that you’ll beg and plead and offer to trade in your car for a stack to take home (until you learn you can buy them by the dozen). Those get topped with exceptional barbecue (brisket or pulled pork), scrambled or fried eggs, and tomato serrano salsa, to make some of the greatest breakfast tacos in the entire known universe. Just know you have to get your order in by 11am – and there’s usually a line.

What to get: Potato, egg, and cheese (add pulled pork); Real Deal Holyfield (with brisket)

https://www.theinfatuation.com/austin/guides/best-breakfast-tacos-austin