Good site no where, bad site just came got #5th on google!!

So It can be one of the most unanswerable questions ever asked on the black hat seo forums;
It's nothing but maybe the google is unfair. Two sites trying to rank for the same keyword 'fifa 18 apk' but the main bad thing about Google is:

1st site with about 1200 words, good on-page SEO, good content, Medium Authority, high number of backlinks,1 month old = Nowhere in the google for the keyword
webpage is:https://techbroot.com/fifa-18-android-apk/

2nd site with about 500 words, simple on-page SEO, Average content, Medium Authority, zero(Z.E.R.O) backlinks, 1 day(Yes only 1 DAY) old, = 5th on google for that keyword
webpage is:https://www.moderntechgamer.com/fifa-18-apk-download-for-android/

First I thought reason can be the authority but both sites have almost the same authority 'Medium'.

I don't know why Google does this partiality but the reason behind I am writing this post here is:
If anyone can tell me why the 2nd site just came and ranked at 5th, I've given links of both web pages if I missed out something or if anyone has an answer, please reply?

 

Still think that Google is interested in user experience

 

But that 2nd domain has been getting traffic for close to a year and a decent amount according to Ahrefs organic search (yes im aware that ahrefs and all other analytical tools have flaws and should be taken with a grain of salt). Still, the site itself is not 1 day old, the PAGE may be 1 day old but that is kind of the purpose of silo'ing. The 2nd domain has months of growing organic traffic and growing authority in that niche and is throwing its weight around accordingly. I didn't do a super thorough "audit" and I'm sure there are other factors involved with the results you are seeing. But this is what stood out to me.