My main issue with the FPÖ is that they need to take lessons from the SVP and Lega Nord when it comes to crude, stereotypical depictions of ethnic minorities.
When it comes to this, the FPÖ aims to keep an eye on their future electoral victories:
The only real ethnic minority which can be argued that the FPÖ is against are the Turks (or other Muslims).
And Carinthian Slovenes, of course.
What's to keep SPÖ and ÖVP from negotiating? You don't need a "formateur" for a two-party coalition, that tradition belongs to countries where coalitions are frequently complex three-plus affairs.
Of course, I'm from Germany where we don't
have this whole president-invites-someone-to-try-forming-a-government business anymore, thanks to how President Hindenburg used it. Parliament in supreme in choosing whatever chancellor it wants.
Also, of course, there's precedent in Austria of the same thing being done, back when Schüssel was hellbent on coalescing with Haider and becoming chancellor - while third in terms of votes (but tied for second on seats). President Klestil - an ÖVP man himself - gave the task of forming government to the SPÖ, who were the largest party. Schüssel formed his government anyways, and Klestil had to swear it in.