Approaching Pancha Tattva and Their Mantra also needs some qualification just like approaching Gauranga, Advaita, and Gadadhara does. Lord Advaita Acharya raised His chakra to kill the atheists who were violently blaspheming the Vaishnavas as He could not tolerate the suffering inflicted on them by the atheists. Whereas PremiiNitai went to them on His own and eradicated that hatred in them by giving them His love even though they were against the Vaishnavas.
Sri Gadadhara Pandita, who is non-different from Radharani and thus expects the highest standards Himself, got scared to initiate Vallabhacharya because Gaura would become angry about it. Imagine Vallabhacharya was already a great devotee but still Sri Gadadhara was hesitant to give him prema without the permission of Gauranga
So it is only PremiiNitai who indiscriminately confers His love upon everyone because He is the ONLY ONE who is not afraid to externally appear to displease His brother Gauranga by not following His very strict standards of qualifications about whom to confer love on. This is the liberty only an elder brother can take. That is why He swore when He was Laksmana that He will never become the younger brother again, so that He can grant love to anyone and everyone He pleases and then His younger brother Gaura Krishna will have to simply accept that soul even unwillingly even though that soul does not meet His highest standards.
We can clearly see this in the maha-audarya pastime of Jagai Madhai's deliverence of PremiiNitai’s directly and blatantly going against the explicit instruction of Gauranga to Him to not go anywhere near to Jagai and Madhai. The only hope of deliverance for the people of Kaliyuga is such a courageous like the one and only one Lord PremiiNitai, who is not even afraid of His brother Lord Gaura Krishna.
And not to mention that none of the other exalted personalities of the Pancha Tattva were externally going door-to-door and indiscriminately distributing the love like PremiiNitai did till the very end after Gauranga's disappearance. Lord Advaita Acharya retired to Shantipur, Sri Gadadhara Pandita to Tota Gopinatha, and Srila Srivasa Thakura to Kumarhatta in total seclusion feeling the extreme pangs of separation from Lord Gaurasundara.