For culture reason, I don’t see why not. But these men apparently interviewed there according to one poster. So my view and opinion is that these are the same type of people who claim to be URM(through whatever means, even while growing up as white) to get into to top colleges.
My son (at this point) has no interest in home ownership. His salary covers the rent easily. He likes the weather. He’s working for his dream company. Why not live in SV?
Salaries are generally higher in SV than in less expensive locations for comparable jobs. For example, according to PayScale, employees with the title “Software Engineer” working in Mountain View have a 46% higher median salary than the national average for that job title. It’s not unusual for newer grads to have 6 figure incomes. That extra salary can go a long way towards living expenses. Furthermore if you save a portion of the high SV salary and eventually own (I realize this is not practical for many new grads), then you can profit off of the increasing home prices. For example, I live in an area of CA with high housing costs and own. The average gain on my home during the time that I owned has been higher than my work salary.
That said, the main reasons I choose to live in CA instead of where I grew up in the northeast have little to do with salary, home prices, or net profits. Among other things I enjoy the moderate climate, lifestyle, and greater job opportunities. My area averages highs of 70F +/- 5F all year round, with low enough rain to be on the verge of desert classification. I wear short sleeves without a jacket all year long instead of dealing with shoveling the car out of the driveway during the winter and such where I grew up. Living near the ocean influences lifestyle as well as weather. Comparing to where I grew up people tend to be more laid back, healthy (notably less smoking), athletic, etc. For historical reasons relating to employees of certain companies founding others decades ago, there are a large number of companies in my industry concentrated in the area, leading to many work opportunities. I could probably find quality jobs in a similar industry at a half dozen other companies in less than a mile distance form my current job.
Of course one could write a similar list for other locations, and CA has more than its share of valid criticisms. Living in SV or other areas of CA is obviously not for everyone, but I can understand why many would want to do so, particularly those working in tech fields.
I don’t know if true or not, but my son says he thinks there are 4 best places for CS: SV, NY, Boston area, and Texas. It is obvious which place would be the most affordable.
And obvious which place would be the most undesirable 
Seattle is also one of the best places for CS.
My niece (a Drexel CS grad) was recruited to Seattle by Amazon and then later to the SF Bay Area by a competitor. She had zero West Coast connections before getting the Seattle job, just mad skills.
Good for her, Lucie. Great story. More power to students like her. It is not necessary to be educated in the SV in order to get a job in the SV, for heaven’s sake. Plenty of CC parents can testify to that! 
By the way, I love Drexel, even though I’ve never visited! (Haha, I sound like one of my students applying to colleges. “I love you but I’ve never visited.”) I love their opportunities, is what I mean.