The reality is they are currently helping, have been, and noone else has in that same regard.
-- edit --
Those articles linked below are about "talks" and proposals.
As of now, noone is deployed in Ukraine other than Starlink.
Those companies highlighted don't even have the capacity.
They are just blowing hot air for publicity. They aren't helping at all, they are just using the situation to advertise.
-- edit 2 --
I see, I must have missed that Eurosat was deployed in Ukraine. Albeit in a much more limited form than Starlink.
That's good at least one other company has helped.
However, you still have to credit SpaceX for enabling the ability to send the satellites up there in the first place :)
Sure you could subsidize the competitors, but they'll be sending a huge portion of that to Starlink anyway to launch them.