I believe Crazzy Legs was describing the many skiers who were NOT taught wedge turns properly. These skiers exhibit easy-to-see but difficult-to-eradicate movement patterns, typically including a sequential turn initiation that shows a reluctance to release the new inside ski until AFTER the new outside ski is firmly planted on the BTE. This leads to a reluctant, stemmed beginning to each turn, particularly on terrain perceived to be challenging.
Instructors may combat an over-emphasis on the BTE/new outside ski by getting students to focus on releasing/tilting the LTE/new inside ski FIRST. They're trying to break old habits and build new sensations and movements.
The goal, eventually, is simultaneous RELEASE (the first step) and TIPPING (the second step) of both skis. As FlyingMidgets correctly noted, what you split into two questions is really two phases of a single, continuous movement. As our skis rotate from one set of edges to the other, they must at some point transition through being flat. It's all one movement.
BTW, the release/tilt move should begin from our feet and ankles, not with big moves of the knees, legs or hips. Focus on skiing with very relaxed feet and ankles. Then initiate each turn by just rolling them. The big move of angulating legs and knees comes later as you shape the middle and end of the turn. An instructor at Taos recently got me skiing more like this. When we started I was initiating turns with big leg or knee moves. Trying to follow him down steep, narrow bump and tree lines was like, "YIKES - I can't keep up!" Once he got me to relax feet and ankles and initiate by just rolling them, saving the big knee/leg moves for later in the turn, I started chasing him down those same lines with a "WOO-HOO - let's dance!"