Honestly, its not too valuable. Japanese phonemes are mostly straightforward for english speakers, with the exception of “n”, the “d” and “r” syllabes, and the small “y” syllables (kya, ryo, etc). Those deserve some practice.
The stuff that gets complicated is things like devoicing, pitch accent, and redaku, which are all contextual. Listen for these in your anki so you get familiar with them, then practice them either in person or by shadowing in your immersion.
SRS helps you remember the shape of the word so you can qet to know it when you meet it in the wild, but it won’t teach you the job that word plays in laguange.