Absolutely! If a person is going to say that those who speak in tongues are doing so falsely, they have to be consistent with all the Scripture that describes false people. False people are those who walk in the flesh, hating their brothers and sisters, involved in sexual immorality, contentious and argumentative, jealous, envious, living riotously, haters of God, rebellious against authority, treading underfoot the cross of Christ, full of pride, whose god is their belly, disrespecting the body and blood of the Lord, worshiping idols and encouraging others to do so.
Frankly, I have never met anyone who prays or speaks in tongues who can fit the description above. I have found that, although they have faults just like everyone else, and have battles with the flesh just like all of us, their hearts have been toward Jesus, encouraged others to have faith and trust in Him, and have sought holiness with all their hearts.
If people are going to accuse others of being false, they need to provide evidence that they are behaving in all the ways false hypocrites do, not just single tongues out and say that a person is totally false and a religious hypocrite just because they do speak in tongues.