I am not contending with any 'they' as you are. I am simply giving what I believe the understanding of the Scripture is. I believe this is part of your problem. You are attacking a 'they'. Thus you want Scripture to come against them. Even though it doesn't always.
I have no problems with the believers receiving a second, or even a third or fourth blessing from the Holy Spirit. That doesn't mean it has to be evidenced with speaking in tongues. But that doesn't mean there isn't the gift of tongues.
But in our walk with the Lord, at times the Holy Ghost appears more real in our lives than at other times. And when such times occurs it is only natural that ones gift from the Holy Spirit would manifest itself more. Thus if one has the gift of tongues, then they would manifest that gift. And for that reason some of 'them' may say that one needs that gift of tongues as a second blessing, because that is their experience. Whereas those who don't have the gift of tongues don't have that experience.
You can find this problem with all of the gifts of the Holy Ghost. Those who have the gift of evangelism, have a hard time with those with the gift of teaching, and vice versa. Those with the gift of mercy have a hard time with those with the gift of discernment of spirits, and vice versa. And everyone hates the prophet.
Stranger
So basically you are arguing against scripture about the warning against those who preach another spirit to receive that they have not received and thus another Jesus and another gospel ( 2 Corinthians 11:1-4 )
You believe that there is no need to test any spirit but believe every spirit to be the holy Spirit thus disregarding 1 John 4:1-6 , especially when they speak in supernatural tongues as the world speaks.
You are okay with having no need to defend the faith ( 2 Corinthians 13:5 ) as many yahoos out there can go on after getting that "Holy Ghost" the second time by sign of tongues by having continual receiving of other signs of confusion regardless of the prophetic warning of 1 Timothy 4:1-2.
You refuse to acknowledge that tongues for private use with no interpretation is confusion even for the tongue speaker as Paul has said for tongues to come with interpretation from another for even him to understand it?
1 Corinthians 14:13 Wherefore let him that speaketh in an unknown tongue pray that he may interpret. 14 For if I pray in an unknown tongue, my spirit prayeth, but my understanding is unfruitful. 15 What is it then? I will pray with the spirit, and I will pray with the understanding also: I will sing with the spirit, and I will sing with the understanding also.
You don't see mystery Babylon, the mother of harlots at work, whereby many nations of believers have committed spiritual fornication against the Bridegroom?
Scripture cannot go against scripture, but if you can't see that you are wresting Paul's words because of your love for tongues for private use, I leave you to God.