The Z06 is not only more track focused but it's also going to be embraced by purists as the last Corvette of its kind, just like the 458 being the last NA mid engine Ferrari is championed by Ferrari fans, and I'm not just saying that because I own one. The 488, the F8, the Pista that came after it are way faster, handle better, have much better tech and are by all metrics much better cars, but to many nowhere near as fun or engaging to drive, and certainly do not come close to the sound of that high revving NA FPC V8. That's why 458 prices have steadily climbed in the last couple of years, and why GM benchmarked it for the Z06 and not Ferrari's newer models.
There are going to be so many insanely fast electric/hybrid assist cars coming down the pike by all manufacturers and they will be the norm moving forward. But if you really embrace the whole driving experience rather than just speed for the sake of speed, the C8 Z06 might be something you want in your garage, not only in the short term but to crank up and take out fifteen years from now when almost everything around you is a super fast roomba.
And I'm not saying the Zora won't be epic or that I wouldn't be interested in it ... I'm just noting the appeal of giving up a little speed for other considerations.