Yepp. Musician earplugs still let the high end in, so you can hear what's going on. As a musician with old guitar amps that only sound right cranked to 11? They are a must, in that environment. Dome noise is brief, and much safer than what any older musician has put themselves through.
If you already have tinitus? Good idea to bring some to the dome. My meter, and earplugs are always in my clear dome bag. It truly is a safety thing for anyone that already has some hearing damage. No reason whatsoever these safety devices shouldnt be allowed in the dome.