I'm not trying to be difficult here, I promise, but there are so many variables at play in what you're saying. Not all concerts are the same (including rock ones). Some are well controlled in terms of volume (especially some European Arena type shows) but others can be so loud and out of control that they would be dangerous under any circumstances. No disrespect intended here, but South America has a reputation for excessively loud rock shows.
We also have no idea if your earplugs were correctly inserted or not, or whether they fit your ear canal properly. I'm not discounting your experience at all, as my own tinnitus became severe in 2015 after repeated exposures to loud gigs (with no ear protection). To better understand the dynamics of your situation, though, all the facts would need to be known in order to make any kind of objective assessment.
There is a significant difference between attending a show that's 125 dBA - with incorrectly inserted or improper fitting earplugs - and a show that's 100 dBA with deeply fitted and well-sealed earplugs, for example. I'm not trying to say that you didn't use your earplugs properly or that the concert you attended was at a very dangerous threshold; I'm just highlighting the spectrum of potential variables that are at play.
The difference between 95 dB and 125 dB at a rock concert is huge. In fact, it's 1000 times more powerful.
There is a lot of variables, I agree. But I think that nobody can really enjoy a concert thinking about decibels, earplugs and monitoring tinnitus. I didn´t enjoy the concert, being sincere.