Oh please. Some of the contemporary praise songs our church does are literally Psalms put to music. FTR, we also sing older hymns as well. However, one cannot dismiss as light and fluffy one of Kind David's songs to the Lord, poured out of his heart in times of praise and adoration, distress, etc. simply because the type of music accompanying them is more modern. What matters is the heart of the worshipper. You can be every bit in the flesh singing Not What My Hands Have Done as you can singing Rick Founds Lord I Lift Your Name on High.
The point to be made on the website link I gave was not to condemn either contemporary or hymns, but, rather that we examine what we sing in the light of Scripture just as we would what we receive in a message. In some cases, the text of what we sing may be more appropriate for our personal worship time than it is for corporate worship.