Limited sale of ads on .info, .in, .biz domain names

Increasingly advertising are interested in only advertising on select tlds, they are not interested in other tlds at all. For example an ad network is only offering $3-$5 per blog only advertising on .com, .net, .org .eu., this offer is not valid for other tlds at all.
So a person with .info. .in, .biz or any ngtld domain names cannot avail of the offer
The Moz update in March 2017 has been a greater disaster compared to the last update, and there are very few websites with DA>10 . Unfortunately though there are many seo’s there is no open discussion on the DA updates , why everyone is experiencing da which is so low, despite spending time and money on link building.