I think that every physicist hopes to see something that does not match and then a fantastic work begins.
I did not see anything like this during my studies, PhD and short career and moved to industry. I terribly miss the teaching, though.
I am still 10-12 years away from official retirement and until then I doubt to have the time. Taken into account the seniority of my position, I am quite confident that I could teach afterwards at a good school, something I would do even for free.
Hossenfelder has a lot of... unique takes in the physics world, I don't think she should be used as a general barometer of the field.
Not seeing something when we "expect" to not see anything (from the perspective of certain models) might be more boring, but it's definitely not a "waste" (again speaking purely from a physicist's standpoint).
We know the standard model is incomplete, but where and how are not well known. Not seeing evidence for new physics rules out certain models, and places upper/lower limits on others. It's progress either way.
They keep building bigger machines to fill out the parts that don't have a definition yet.
Anything that specifies what happens at the next band of energy levels is a success, whether it yields new particles, or rules them out at that energy level.
There's some destination of approaching the most energy dense states like describing the mechanics that were active during the big bang period