XFCE Terminal cannot execute custom command

Today a friend of mine asked for a very simple task to accomplish in XFCE: setting a terminal emulator to automatically do an ssh connection.
How hard could it be? You configure your terminal to run an external command, for example: and that’s all! I’ve done a lot of times in konsole, the Plasma terminal emulator.
However, XFCE terminal emulator cannot do. Apparently you can set up it:

but what happens behind the hood is that the command is translated into a single string instead of a command with arguments, then the command is searched as an executable on disk and, of course, not being found, it is not run:

I’ve tried any human-available string escape, but nothing works, *so the solution is to wrap your command(s) into a script without arguments and call it as a *custom comamnd! **
It is fun that the official documentation does not mention this problem, and most notably does not mention the setting at all!