Yes, exactly. Have to pay $$ to remove that splash screen logo!
Stupid question, but I see your logo is on there as well. Might you be able to just make a larger image, or make a background image that blended in with the colors so as to make it illegible? I'm sure that was not top priority, just curious.
No, they don't make it easy (and more importantly, it would violate their terms). You just have to pay to remove the splash screen.
It's really not much of a bugbear anyway. I actually found it useful to see it was built in Unity!
Even if you're technically able to cover the splash screen, you aren't legally or morally able.
That's why I called it a "stupid question", because I asked out of technical curiosity alone and without intent to do so.