I don't know, you seek it less, pray for it less, are more hardened to accepting certain things. I mean maybe they are more draw to other ministries, for God to use in other capacities. There is not a mold God has that we all fit into, this is one of the most amazing things to me is that God is sovereign over all our choices, to me it's incomprehensible, but I wouldn't worship a God that was completely understandable. Having said that, I do have to admit I say that from this side, with opened eyes, before God opened them I couldn't care less about these kinds of things. Jesus told us that people will know us by our love for each other, if I believe different than you, on matters like this, I can share in love how I see it and how God has brought me to understand this, then I sit back and listen to you and how God has walked you to your understandings, you know what? He can use you to grow him a bit, and even maybe him to grow you. Or you go your own way thinking you wasted your time at reflect on the conversation, maybe you were a bit harsh here, or "bing, understand what he meant when he said that now" and God grows you that way. In ALL things He grows us. God is amazing and EVERYTHING is in His hands.
So I'm not trying to really debate you on this issue. I go to a church at affirms these things, I don't practice tongues in this way because #1 I tend to understand them to be a actual language, for people who can't communicate to communicate. How ever I do honestly think there is enough language in the text to leave room for this practice. That aside I believe that if they do it for His glory, if they are doing it in Him then praise the Lord for it. I truly believe this falls under Rom 14:1-12,
1 As for the one who is weak in faith, welcome him, but not to quarrel over opinions. 2 One person believes he may eat anything, while the weak person eats only vegetables. 3 Let not the one who eats despise the one who abstains, and let not the one who abstains pass judgment on the one who eats, for God has welcomed him. 4 Who are you to pass judgment on the servant of another? It is before his own master that he stands or falls. And he will be upheld, for the Lord is able to make him stand.
5 One person esteems one day as better than another, while another esteems all days alike. Each one should be fully convinced in his own mind. 6 The one who observes the day, observes it in honor of the Lord. The one who eats, eats in honor of the Lord, since he gives thanks to God, while the one who abstains, abstains in honor of the Lord and gives thanks to God. 7 For none of us lives to himself, and none of us dies to himself. 8 For if we live, we live to the Lord, and if we die, we die to the Lord. So then, whether we live or whether we die, we are the Lord’s. 9 For to this end Christ died and lived again, that he might be Lord both of the dead and of the living.
10 Why do you pass judgment on your brother? Or you, why do you despise your brother? For we will all stand before the judgment seat of God; 11 for it is written,
“As I live, says the Lord, every knee shall bow to me,
and every tongue shall confess to God.”
12 So then each of us will give an account of himself to God.
So that's how He's has lead me to see it thus far.