Why Avast does not flag filedirection dot com - a spam and a phish.

Where I saw it marked: http://urlquery.net/report.php?id=1429906158457 (with jQuery.tipsy.js) *
Bitdefender TrafficLight flags, bad web rep: https://www.mywot.com/en/scorecard/filedirection.com?utm_source=addon&utm_content=popup and a known survey scam according to this report:
http://www.spam404.com/filedirectioncom.html (a so-called high risk site).
Also consider this being flagged at the urlquery dot met results: https://github.com/twbs/bootstrap-sass/issues/592
Read: http://onehackoranother.com/projects/jquery/tipsy/ credits to jason AT donut (tipsy has an incompatibilty with some jQuery versions, meant for control-obsessed developers and there is the weakness of it - pol, and it was used maliciously: https://www.virustotal.com/nl/file/c1795078caf3caba521a678525f1db6af66bae3270b882b7935b1c9d616dd240/analysis/ )
Avast will detect this jQuery.tipsy.js as JS:Decode-XA [Trj]

polonus (volunteer website security analyst and website error-hunter)