I'm incredibly humbled by this to be acknowledged...

[lagoo]

"I'm incredibly humbled by this to be acknowledged at this magnitude for something that in truth I've never wanted credit for."

Is this sentence grammatically wrong?
There should be a noun clause after the word "by", which is not the case in the original sentence.

 

[Raymott]

"I'm incredibly humbled by this - to be acknowledged at this magnitude for something that, in truth, I've never wanted credit for."

It's grammatical enough as spoken, given that it appears to be a speech. It's not grammatical as you've written it.
I don't like 'magnitude'. "At this level" works.

 

[lagoo]

It's grammatical enough as spoken.
It's not grammatical as you've written it.

I have some questions regarding your answer, where the use of "as" is quite confusing.

#1 It's grammatical enough as spoken.
If I write a sentence like this, it will be "it's grammatical enough when we speak it". But I know natives will not use such sentence. So here in your sentence, does "as" means "when", and is it a shortened sentence from "it's grammatical enough as it is spoken"?

#It's not grammatical as you've written it.
What does "as" mean here?

 

[Matthew Wai]

I take 'as spoken' to mean 'as it was spoken' and take 'as you've written it' to mean 'in the way you've written it'.

 

[SoothingDave]

"By this" doesn't add anything to the sentence. I am humbled to be acknowledged...

 

[Matthew Wai]

If I write a sentence like this, it will be "it's grammatical enough when we speak it". But I know natives will not use such sentence.

This non-native would write 'It's grammatical to say it'.