As I read it (female and child) Ukrainian refugees are being prioritised, for obvious reasons. The sheer uptick in border-crossings means they can hardly cope with that new backlog so that, even expedited, it isn't the quick process it might have been on a family trip a couple of weeks ago. Anyone of 'normal' priority is going to be just experiencing the delays without the humanitarian considerations, seeing the mass of other people going ahead of them.
I'm not saying there isn't racism of the bald, everyday, sort, that it's hard to monitor and try to correct when every hand is needed at the pumps. People get that way, or are insufficiently guided away from such prejudices.
And there may be forms of institutional racism, too, perhaps with a basis in previously trying to deal with all kinds of through-migrants who arrive with vastly unfamiliar paperwork that needs extra time to deal with. Extra time that it's perhaps easier to dedicate to just dealing with another dozen family-units who happen to have comparatively easy-to-confirm confirmation that they're (normally) non-peripatetic residents of Kyev.
It's a mess, and hard cases get noticed. A single racist border-official can deliberately impede everyone of African heritage he can, just because, and paints the whole office in a bad light. A rush of a tour-group has to be dealt with together (probably not keen to separate) when extended-family groups can probably fragment into mother-and-her-children subunits with little more fuss than "...and we'll meet by the lime-tree, or phone to let us know you're already on the way to your parents-in-law".
Not saying it couldn't be done better. Not saying it's not actually prejudice, at times. Just that a small numbers of specific complaints are easier to latch onto than the large numbers having their own more generalised difficulties. Both ends need to be dealt with, but a lot of this is beyond any normal level of training and guidance so I expect it to be rocky, and barely anywhere along the path to a finely-tuned solution before everything changes again (in whatever way from a number of quite disperate futures).