What did you expect them to say? The Ukrainians will of course say these sort of things since they don't have much of any choice now do they? If they try to say the truth then it'll only offend western backers who are trying their best to supply them with weapons and money that their public are beginning to question. Anymore bad publicity will just deflate any sense of solidarity and cohesion the west lead by the US is trying its earnest to maintain.
To be honest, I wouldn't be surprised if this isn't just a speech for the cameras and they actually believe what they are saying going "a tank is a tank, just point and fire".
Which means at the first sign of a failure they wouldn't encounter in a T tank, they'd be likely to just bail out and leave the thing behind.