Pressing TOGA as laid down in boeing WS escape maneuver,will provide FD guidance to initial 15 deg,no guidance to MCP altitude at all.
You are correct in this statement de facto.
However you are most importantly WRONG in the logic behind the FD's.
Pressing TO/GA will command a thrust increase, for either case GA or WS Escape.
It does NOT differentiate between them when reaching an altitude preset in the MCP, it WILL acquire the altitude.
Hence there is a threat when a (low level) altitude for a missed approach is selected, as WS Escape will terminate...
Anticipate!