How can you outrank a site with this kind of link profile?

There is this site which is raking for any keyword it is trying to (wordpress niche). He doesn't build links manually. It has some free wordpress themes that have credit links on the footer. That way he is just ruling the SERP making other blogs out of business. It has 4K+ keywords on top 3 results on Google (SEMRUSH). With this kind of link profile, he can do something better. But he choose to stay low targeting avg. keywords. What do you think ? Is it possible to outrank this site or should I move to something else. See the link profile on the image below.

1) Hire graphic designer on Upwork, have some kick ass themes designed (3-5 to start with)
2) Hire wordpress coder on Upwork, have said themes converted to WordPress themes, include a link back to your site in the footer with some generic anchor text
3) Publish them and offer them for free in the wordpress theme library.

Alas, you've replicated his outcome.

I agree with Tony_D, that's a way to get fast backlinks and with a lot RD.

In order to distribute the themes for free I have to own the license. What will be the cost for that.

If you have knowledge in it, you can create by yourself. Or create a PSD and ask someone in Upwork to convert the PSD to a Wordpress theme.