Why does Prabhupada say that Haridasa Thakura is superior to Lord Shiva?

From Promila Mataji

In one of the purports in BG chapter 2, Srila Prabhupada cites a comparative example that how Lord Shiva was agitated by Parvati whereas Hari Das Thakur wasn’t even moved a bit by the prostitute who came to allure him. This was in the context of establishing that devotional service is superior to any other path on the yoga ladder.

SB say Shiva is the best of all vaishnavas. So in a way the comparison is between two vaishanvas. And despite being the best vaishnava Shiva was agitated. Please could you shed some light on this?

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