innodb_buffer_pool_instances suggestion

[PRR24]

I understand, the property is about to get extinct soon, but for older platforms -- currently mysqltuner suggests always to use innodb_buffer_pool_instances = innodb_buffer_pool_size / 1G (+ checking for hard limits)
Up to my best understanding, it is not recommended to set innodb_buffer_pool_instances (much) higher than CPU core count. If I am correct, would it make sense to integrate it into recommendation?
Or please correct me, if my understanding is incorrect.