Apple TC MacBookAir8,1 (j140k) is not supported

[EvanCarroll]

When I run beta 0.12.4 I get this message,

Sorry, Apple T2 MacBookAir8,1 (j140k) is not supported.
ECID: 0x555483a060026

Why is that though? The docs say T2 Macbooks are not supported? Was this warning message never removed?

Without the tui I get

sudo ./checkra1n -c -v -V
#
# Checkra1n beta 0.12.4
#
# Proudly written in nano
# (c) 2019-2021 Kim Jong Cracks
#
#========  Made by  =======
# argp, axi0mx, danyl931, jaywalker, kirb, littlelailo, nitoTV
# never_released, nullpixel, pimskeks, qwertyoruiop, sbingner, siguza
#======== Thanks to =======
# haifisch, jndok, jonseals, xerub, lilstevie, psychotea, sferrini
# Cellebrite (ih8sn0w, cjori, ronyrus et al.)
#==========================

 - [01/04/26 02:39:06] <Info>: Waiting for DFU devices
 - [01/04/26 02:39:06] <Verbose>: DFU device connected: 555483a060026
 - [01/04/26 02:39:06] <Info>: Exploiting
 - [01/04/26 02:39:06] <Verbose>: Attempting to perform checkm8 on 8012 10...
 - [01/04/26 02:39:06] <Info>: Checking if device is ready
 - [01/04/26 02:39:06] <Verbose>: == Checkm8 Preparation stage ==
 - [01/04/26 02:39:07] <Error>: Sanity check transfer failed, device busy or crashed? (ffffffff) (error code: -26)
 - [01/04/26 02:39:07] <Error>: Unable to perform checkm8: ffffffff (error code: -21)