I guess Senators don’t have more important issues to worry about do they?
We just got a very clear confirmation that our enemies were willing to wage fantastically costly, highly unprecedented forms of warfare against us, and that the intelligence community, mass media and social media were all willing to do every last thing they could to help magnify the effectiveness of that warfare. In that context, determining what exactly those enemies have been penetrating our airspace with seems very relevant.
Naval aviators who have seen these "tic-tacs" and other craft say we have no defense against them (i.e., they outperform our aircraft to an extreme degree). If, for example, these are Chinese drones, we need to know the details.