That does not make it a TAS under the definition of what a TAS is. Tool-Assisted is to imply you use tools efficiently to speedrun a game, the use of a turbo button will assist you in getting a faster time, but it is not efficient enough in getting the fastest speedrun. Tools such as the one in most emulators like frame advance, savestates, ram watch, etc are all used to make an efficient speedrun, where as Turbo does not help you with direction, control, turning. that is somthing you have to do on your own.
[14:15] <feos> WinDOES what DOSn't
12:33:44 PM <Mothrayas> "I got an oof with my game!"
Mothrayas Today at 12:22: <Colin> thank you for supporting noble causes such as my feet
MemoryTAS Today at 11:55 AM: you wouldn't know beauty if it slapped you in the face with a giant fish
[Today at 4:51 PM] Mothrayas: although if you like your own tweets that's the online equivalent of sniffing your own farts and probably tells a lot about you as a person
MemoryTAS Today at 7:01 PM: But I exert big staff energy honestly lol
Samsara Today at 1:20 PM: wouldn't ACE in a real life TAS just stand for Actually Cease Existing