We now have a church culture that learns who God is from singing modern praise songs rather than from the teachings of the Word. ... However, singers are not always the best people to write solid bible truth and doctrine.
That may be true in some instances. I suspect that people who are familiar solely with the worship leaders/so-called 7-Eleven music motif are not aware that old-style worship hasn't disappeared completely, though!
Further, some of today's "worship songs" still have doctrinal integrity, even though many do not. Our own church has a contemporary service with a praise band (no actual worship leader). They do three songs, words projected on the wall, and from what I've seen seem to stick to pretty solid, doctrinal lyrics. It's up to the pastor to ensure that worship songs are not the
only source of teaching, of course.
CCM of the early years (Keaggy, 2CofA, Keith Green, Petra, etc.) was very formative for me, but I still greatly appreciate the traditional service, use of hymnbooks, etc.