Although generally sound advice, there are some situations where it's difficult to apply. Some people simply cannot afford an HK P7 or a Glock or even a CZ75. There are some manufacturers who do make basic reliable platforms that most 'in the know' gun buyers and enthusiast would quickly look down upon simply because they are not top-notch quality, not made of the latest metals or plastics, or are state of the art, etc. All of that cost money, money that the manufacturer passes on to the buyer, and money that the buyer must pay. Some don't have all of that money.
In short, for new shooters, research what you can buy and buy the best that your money will allow. There are plenty of forums like THR where unbiased opinions can be read for research. Keep in mind, however, the opinions that only count from the ones that actually own or have extensively shot (more than say 50 or 100 rounds) the gun in question. Throw out the opinions of the gun snobs who have never shot the gun.