I honestly doubt you clicked the link at all before commenting, and likewise doubt that you've actually had any first-hand exposure to Tcl in the past.

You SEEM to be referencing the "Tk" portion of Tcl/Tk. Tk is the desktop GUI framework that comes with most distributions of Tcl. But it has no apparent relevance to this or any other Tcl-based web framework.

This is kinda like dismissing a Java server-side web framework because Swing is ugly, or dismissing C# on the web because you don't like WPF.