The SBC moves in and out of sin regularly. The fact that they banned tongues was sin 1Cor 14:39 Wherefore, brethren, covet to prophesy, and forbid not to speak with tongues.
And the fact that they have now opened the door with no qualifiers is also sin. The true gift was understood by the one speaking and did not require an interpreter for himself. The false gift was not understood by the one speaking or the people listening.
1Cor 14:5 I would that ye all spake with tongues, but rather that ye prophesied: for greater is he that prophesieth than he that speaketh with tongues, except he interpret, that the church may receive edifying.
Also the tongues has to be for edifying the church, not some so called prayer language. So again the SBC went into sin by refusing tongues and now have went deeper into sin with their compromise and not setting proper biblical standards.