The issue here is not so much that it’s flowery but that it’s completely unremarkable, bordering on a truism, in its content. The sentence literally means: sound is relevant because you constantly hear it.
The sentence is badly written, which is why it feels like a truism. But there is content in it.
> Sound, an omnipresent sensory stimulator, ...
Sounds are always being heard by your senses: ears + bass that you feel in your body.
> Sound ... continually engages our auditory and mental faculties.
The continuous usage of our senses then lets sounds force our brains to think in particular ways. This is distinct from above - brain vs ears.
> Sound ... holds significant relevance in the human experience ...
The continuous engagement results in sound being important to what being human means. Note that human experience is larger than what you think. So this is also distinct from above.
I’m sorry but you have taken a lot of words to basically say: you hear sounds.
Special mention to “ Sound ... holds significant relevance in the human experience” which is itself a truism in the truism. Yes, sound is an experience and experiencing is a significant part of being alive. You are welcome for this insanely new and deep nugget of information.
Honestly, you can remove the first paragraph of the introduction with no loss of information involved and end up with a better article.