Interesting articles. If those articles are true, it is clear from my previous postings that for Muslims to kill or harm anyone solely because they happen to be non-muslim is not consistent with Islamic doctrine.
When we consider that even in the Taliban controlled Afghanistan, Christians and Jews were tolerated, as long as they did not attempt to convert Muslims to their faiths. Recent reports on CNN - "A Priest Among Mullahs," I think the title was, and the report in last Saturday's Washington Post about two Jewish Rabbis in Kabul, bears this out. So, while I cannot say with absolute certainty that what is claimed in the reports you site didn't happen, I can say with absolute certainty that if it did, it is not consistent with Islam and is certainly the exception and not the rule.
Your reports specifically site Saudi Arabia. Even in this often sited country, where non-muslim houses of worship are prohibited, the persecution of non-muslims, solely because they are non-muslims, is also prohibited. It is well known that many non-muslims live and work in Saudi and it also well known that religious non-muslims are permitted to practice their religions in their homes. The prohibition is not on the practice of religions other than Islam; the prohibition is on the building and establishment of non-Islamic places of worship in what is referrred to as "the Guardian of the House of Allah in Mecca." An analogy would be, the construction of Mosques, Temples, Synagogues, or even other denominations of Christian churches in the Vatican.