I am not sure if your scholars are using Quran, but just look at the following ayahs:
"Verily! Those who disbelieve and hinder (men) from the Path of Allah, <b>and from Al-Masjid-al-Haram (at Makkah) which We have made (open) to (all) men, the dweller in it and the visitor from the country are equal there [as regards its sanctity and pilgrimage (Hajj and 'Umrah)].</b> And whoever inclines to evil actions therein or to do wrong (i.e. practise polytheism and leave Islamic Monotheism), him We shall cause to taste a painful torment.* And (remember) when We showed <b>Ibrahim (Abraham) the site of the (Sacred) House (the Ka'bah at Makkah) (saying):</b> "Associate not anything (in worship) with Me, [La ilaha ill-Allah (none has the right to be worshipped but Allah Islamic Monotheism], <b>and sanctify My House for those who circumambulate it, and those who stand up for prayer, and those who bow (submit themselves with humility and obedience to Allah), and make prostration </b>(in prayer, etc.); * And proclaim to mankind <b>the Hajj </b>(pilgrimage). They will come to you on foot and on every lean camel, they will come from every deep and distant (wide) mountain highway (to perform Hajj * That they may witness things that are of benefit to them (i.e. reward of Hajj in the Hereafter, and also some worldly gain from trade, etc.), and mention the Name of Allah on appointed days (i.e. 10th, 11th, 12th, and 13th day of Dhul-Hijjah), over the beast of cattle that He has provided for them (for sacrifice) (at the time of their slaughtering by saying: Bismillah, Wallahu-Akbar, Allahumma Minka wa Ilaik). Then eat thereof and feed therewith the poor who have a very hard time. * Then let them complete the prescribed duties (Manasik of Hajj) for them, and perform their vows, and circumambulate the Ancient House (the Ka'bah at Makkah).
" (Quran 22: 25 - 29)
I am not sure which Quran do they read, but Qutuz u have an excellent point, they are omitting all the duties off the Quran, then calling it Islam. Wallah u a`alem, I think they are a group of non Muslims studied a bit of Quran and just seeking to distort the religion of Allah, which will not happen of course.
There is more about this topic but I prefer not to post long posts for people to digest
O BTW the Surat I quoted from is titled Haj, a whole Surat on Haj.........