No we wouldn't, nor am I seeing that about Szoboszlai because 99% of our fans haven't even seen a full game of him, ever.
Mount is a fine signing, albeit expensive for someone with one year left on his deal. He's a good squad addition and will be an added value while you're competing in four competitions (at least before Christmas). But I think we kinda know what he is by now, while Szoboszlai right now has the potential to grow into an elite player. He's almost two years younger than Mount and will have to prove himself in a much tougher league than he's ever played in.
His bust potential is a lot higher than Mount's, but his ceiling is probably a lot higher as well. Remains to be seen whether he can develop properly - I think the likeliest outcome is somewhere in the middle and he wouldn't be a flop if he ends up around Mount's level. That said I do think it's much easier to get excited about his signing than about Mount's.