Should I ignore "NOT INDEXABLE" pages on Ahrefs Site Audit?

What the question asks. I'm doing tech SEO analysis for my client and I see a lot of fields such as:

• Multiple H1 tags - 2,000 pages
• Page has links to redirect - 2,000 pages

On Ahrefs' Site Audit, some pages with problems are divided between "INDEXABLE" and "NOT INDEXABLE".

Basically, why should I care about "NOT INDEXABLE" pages if they are not indexed (AKA shouldn't be crawled by Google)?