Well you had best go tell your researchers. For now, your evo researchers have invented a mythical theropod to wear these modern bird feet.You also complained about finding bird footprints much earlier than we find birds. That is because we don't find bird footprints before we find birds, we find birdlike footprints. The ancestors of birds would have moved and walked very similarly to today's birds, on the ground. They already had birdlike feet for millions of years. We have fossils of the critters and if you examine the feet they are very similar to bird feet. The footprints would have been almost impossible to tell apart.
The reversed hallux has always been the signature trait of a modern bird. It is a wonderful display of handwaving and hanging onto to dead theories, that should be falsified if they were based on any science at all, and chalk up yet another anomoly to convergent evolution, the excuse of the century.