What about it? It says, all will acknowledge His glory but it doesn’t say, all will be saved.
Your presupposition of all being saved allows you to contextualize it in that manner.
Does this sound forced to you? Will God’s conquered (soon to be tortured) enemies sing His praises?
My point is that God doesn’t just desire praise from our lips but praise/love from all our heart, mind & soul, something only someone reconciled to Him can give…