At this point, what matters is that the aid to Ukraine is not only back, but it is also bigger. I am guessing that the summer offensive planned by Ruzzia is going to be met with sufficient force while the attacks of oil, weapons and military targets is getting better. I would not be surprised if Ukraine pull another "IKEA delivery" to another airfield in Ruzzia. Or maybe to the fleet in the Baltic.
https://www.politico.eu/article/the-us-resumes-some-weapon-delivery-to-ukraine/Fermi paradox
But the biggest reason why it matters is, it's getting closer to the time when the nukes will start flying. Seems like the West wants that to happen.
Of course, the Trump 50 days can be changed to anything else on a moment's notice, as can future shipments to Ukraine.

BA, you have opened a thread saying that nukes do not exist

Why worry then?
Putin is still there because he understands that nukes are a weapon meant NOT to be used. An uncontrolled nuclear escalation means that 30% of the population of the world will be killed in 72 minutes, the rest in a few months.
Anything nuke like, means NATO intervention and possibly, the killing of Putin - it is not that hard to understand.
Imagine a scenario where Putin calls Iran's Ayatollah and asks why he isn't bombing Washington, Ayatollah says that he can with the right weapons from Russia, and Putin says he should attack New York too. It's idiotic statements like these from politicians that are bringing us closer to midnight. If we're at the point where Russia (with largest amount of nukes in the world) is pressed to use nukes in Ukraine (supposedly after discussions with China), whether NATO decides to end the world is irrelevant, humanity would be doomed if not then than at a later conflict (and we get our answer to the
Fermi paradox). I get that Ukrainian politicians have little down side, but the rest of the world would rather not become zombies in a nuclear winter. History would not look kindly at western expansion into Ukraine that resulted in a nuclear war.

Escalation that brings your own destruction can be "imagined" - fear is free and wild - however the only realistic risk is to have a non-rational agent playing this game that decides that life is not so important after all.
All this is not left to chance, there is a whole games theory (Vonn Neuman, German BTW) that is the basis for decissions on what is the limit for the help, the sanctions and the military objectives choosen. Should the US think that any of the actors is no longer rational, the "problem" would be "solved".