Short answer : No.
Long answer : Limited samples does not justify your conclusion.
- Phish campaign are never free, phisher need to make sure there is enough target fall into prey to pay their bills.
- Regionalised phishing campaign increase success rates. A phisher will make use of online advertiser regionalised tracking features. It is cheaper to piggy back on the online advertiser relayed information than run your own script (that is costly to build and easily blocked by Antivirus software)
- Phisher also run their own statistic on the phishing campaign, to tune the layout, wording, etc.
For example : If you go to popular regional website, when you click on the phishing advertising campaign adverts(which can be anything that you deem interested), it will send all the regional information, including all the advertiser tracking information to the phisher. Then the phisher just show you correspondence contents according to the region. The infamous ransomware are indeed using this tactics, e.g. show crafted Italian page when it know you are a Italian user, show a German page to German user.
That's why a tracker blocker/ads blocker will mitigate a lots of malware campaign, because it reduce the entropy of tracking information relay to the phisher through online advertiser.
For email phisher, using geo-ip to pin point designated language is not difficult.
First, Phisher can put a web beacon inside the email. (That's why you should open not view unknown email in HTML format). For example,
<img src=http://phisher.com/[email protected]/beacon.jpg>
And the phisher web server parsed the url, and immediately know you IP address. What they need to do is just match your IP address Geo-IP with the email address.
Then you can guess what happens next : a email that target the specify region will be send, e.g. send a DHL phish mail to user with Germany GeoIP.
IMPORTANT NOTES: Even getting an external report, you must aware about statistic bias on regional user base. If you read statistic from Symantec, it is mostly USA based. If you get statistic from Avast, then statistic might eccentric in middle Europe and Russia. If you go checkout Avira threat statistic, you will tons of Germany figures.