I think they got misunderstood. Badly.
I think they showed up ready to help, but the Polish officialdom just didn't get it. I think they arrived with a bunch of boxes of goodies they wanted to give Ukraine to help them, and now they're wondering where that all went wrong.
I think Ukrainians had an offer of joint participation in war. Well meaning, more than they usually get. Troops and arms to support them. It just happened to be from one of the tiniest nations on Earth. A few boxes of arms along with their diplomatic delegation is all this country has to offer.
I'm ready to embrace them for offering to do what they could do.