How to write a paper with a parallel but non-trivial approach?
Getting into the details would be too technical for this site, but my suggestion is spell it out explicitly.

If this issue is a concern for your readers and for the referees, there should be a section in your paper titled Why is this nontrivial? (maybe just after the introduction) where you argue on why your approach is relevant. If you can, include an example where it is apparent that your approach is more simple or more insightful.

Don't be afraid to toot your own horn.