Unfortunately SRS platforms are always going to be flawed in some way because they’ll never be able to completely mimic real life. I don’t think changing the interval periods to a longer amount of time would help anyways since it’s important to review something new more often early on. What I’d suggest is, even though you may automatically know what the answer is after reading the first word in the sentence, read the whole sentence anyways. Then, understand why the grammar point is used in this sentence and try and listen to the whole sentence with specific focus on grammar point. If you simply enter in the grammar after reading the first word and then move on you won’t gain anything from it. However, even if you know the grammar because you remember the sentence, if you treat it like a new sentence and understand how the grammar point is used you’ll still benefit a fair amount.
SRS is a great tool, but it’s not going to be how you solidify the word, grammar, kanji, etc. in the long run. Immersion is how you’ll do that. There are a countless number of times where I’ve seen this for me. As long as you spend your time doing SRS effectively along with immersing I wouldn’t worry too much about having memorized sentences to help you recall the grammar. Eventually you’ll run into it while immersing and recall where you’ve seen it in SRS and it won’t matter anymore.