Yup..I am !
The Deobandi Movement has its origins in the teachings of Shah Waliullah who himself lived during the same period as Abdul Wahab ! There is nothing that has gone before my scrutiny that suggests that the Deobandi Movement was significantly inspired or influenced by Hanbali Theologians from Arabia and that they are anything but predominantly Hanfi Muslims !
The Global Security link that you posted hasn't mentioned a single 'reference' to substantiate that claim ! As for the 'Encyclopedia' reference it is so because both the Deobandi Movement as well as the Barelvi Movement and the Wahabi Movement were reformist in nature and so it maybe so that they share similar traits with each other amongst many other fundamental differences for example the Wahabi Movement shuns Taqlid and instead asks for reinterpreting Islam in the light of the Koran and the Sunnah instead of imitating the sayings or doings of the Muslim Scholars of ages past and present. Both the Deobandi and the Barelvi stream, to the best of my knowledge, embrace Taqlid !
Having said that I firmly believe that the words 'Wahabi or Salafis' have become a dirty word and Saudi Arabia unjustly targeted for the ills in the Muslim World when neither the Taliban nor the Al Qaeeda are Salafis/Wahabis; the former are Deobandis and the latter are followers of Syed Qutub's teachings. Even here in Pakistan some of the most vocal supporters of the blasphemy law and advocating severe punishment against any who'd, in their opinion, blaspheme against the Prophet (PBUH) aren't Wahabis (or Ahle-Hadith) or Deobandis but rather Barelvis ! I'm sure KSA has a lot of things that she does wrong, as does any country, and I'm sure that there is a lot of abuse of Salafism/Wahabism, as there is of every creed, but neither KSA's nor Wahabism's crimes or shortcomings *choose your pick* are any worse off than our own...perhaps even less and yet we have blame them and their creed unreservedly without any evidence whatsoever !