Yes, I am sure.
I just made use of my Linux Deploy environment to run efibootmgr, and change the boot order for the EFI bios. It was sidestepping looking for bootable media on the USB interface by jumping straight to the android loader as the first boot option. Changed boot order to look for bootable USB sticks and CDroms first.
(This thing's EFI implementation lacks a "bios screen", so I have to probe it with byzantine tools like this. This is to be expected-- they intend it to be an idiot proofed Android only tablet. Nevermind that the ONLY DIFFERNCE between this tablet and a substantially more expensive windows 8.1 tablet by the same maker, is 1gb of RAM, as far as hardware goes. 8.1 will run like poop on 1gb of RAM, but Mint will do OK if I turn zram on with some aggressive settings. It will be nice having native linux with sound working. My Linux Deploy solution uses the in-memory kernel that android uses, and the alsa modules baked into it wont work with normal linux. The graphics kernel module does though! I have accelerated video right now.)
Now I just need an OTG cable, and I can boot a minty fresh EFI linux live stick. I think my sister has such a thing. I will go visit her. (Failing that, I can go shopping in town)
The OTG cable will have other uses, such as attaching a USB hub to the port, and having a USB keyboard and mouse attached all at the same time. This will be very helpful in setting up any OSes I may want to double, or triple boot. When I have it all configured, I will install something like ReFIT, which has a nice little GUI for picking and choosing EFI capable start options. (that should let me leverage the touchscreen to pick the OS on power on.)