To an extent l agree. But can you do the will of the Father without honouring the Son?
If you do the will of the Father, you are honoring the Son. If someone loves their neighbor as themselves, even if their religion was "the wrong religion" according to some believers, they are doing the right thing and following the law of love that Jesus teaches, through many mouths in the world.
What does it mean to "hear my words"? Does that mean hearing someone read the Bible to them? Or can someone hear the voice of Spirit though any and all means available to them, such as through their own religions of birth?
Very truly I tell you, whoever hears my word and believes him who sent me has eternal life and will not be judged but has crossed over from death to life
~jn. 5:24
To "honor the Son" is to follow what he taught, even if they've never once in their lives heard of the Christian religion nor anything from the pages of its adopted scriptures. Paul himself says this very thing here:
(Indeed, when Gentiles, who do not have the law, do by nature things required by the law, they are a law for themselves, even though they do not have the law.
~Ro. 2:14
Do you believe someone can be a follower of the Spirit of Love, technically a follower of the Christ already, as Christians understand that to be, without having any idea about Christian beliefs and doctrines? Didn't Jesus himself recognize genuine saving faith in non-Jews, and the "unsaved" according to the religionists of his day?