Another user on Reddit:
魂の境界を超えることを指して「超越者」と言っているので、
一護と藍染は形の異なる「超越者」です。
“Since the act of exceeding the boundary of the soul is referred to as a ‘transcendent being,’ Ichigo and Aizen are ‘transcendent beings’ with different forms.”
1st. Key point, the sentence is written in present tense, not past, according to Kubo they are still transcendent being now.
2nd. Kubo answered this question without negating the existence of transcendence concept, meaning he never dropped the concept.
3rd. He brought it back again in the Klub Outside summary of episode, saying Aizen was displaying trascendence presence and spiritual pressure.
4th. Kubo conceded that he wrote himself the datebooks, meaning they are as valuable as manga, and those have quite lot of explanations on transcendence, different dimensions, not feeling the power, being above everyone else etc.