With the recent update where I am fairly certain they messed with healers, I am finding that you are correct. Luring strips too much fire power from the composition.
What Th level are you? Currently I find it most viable at Th9 and that Th10 its lost some luster.
So I have been using some of my old no-lure tactics -which means base selection has to be picky. Attacking opposite the clan castle. Using poison to slow down the CC and getting at least 6 wizards behind your main force.
But of late I am finding myself adjusting my tornado. The subtle AI change so that Valkyrie again dive right into the thick of things combined with the healer tweak have me recalculating.
All the war 3 stars I've gotten have been at the Th9 level. The Th8 ones I have are generally against poor or under leveled bases. I've managed with Th10 before but since the tweak to the healer have struggled to get those 3 stars again (regular raiding)
For Th10 Freeze/poison is becoming a favorite of mine

