Sure. Critics will forever argue that there aren't enough fossils. So even if 100 more fossils were discovered linking major groups tomorrow, they'd still just call for more fossils between those links.
The reality is that every single time a fossil is found linking two groups, even if it's just of one single species, it completely defies all odds that such a thing would even exist if not for common descent. Consider a single tetrapod transitional of the Devonian. You have billions of years of rock layers in which this animal could be found. An entire planet of rock where it could be found. And yet, it just so happens to be in just the right layer of just the right period of time, of just the right lithology, of just the right morphological traits. 99% of possibilities would prove evolution wrong, and yet, in just a single find, we observe that 1% chance that vindicates the theory. And this happens over and over and over again. And so to get around this, we end up in this strange situation where we have to deny the age of the earth, or move toward the mysterious position of intelligent design, which doesn't really have any clear evidence behind itself but rather is based souly on an alleged lack of fossils. But of course, an argument against one thing has never been an argument for something else.