I would if the sequence was such that the receipt of eachbof thr subsequebt ones delayed writeup of the overall incident in the interest of completeness or because there was some relationship between them
> the subpoenas from March and April 2023 don't have a gag order. Why mention those months specifically if in the other months they didn't receive any?
Because you are doing an aggregate writeup of a series of events and you want to convey when they occurred and why you are able to do a detailed writeup.
> We have waited for the string of subpoenas to subside
If the "string of subpoenas" were really only the three, then it "subsided" in april - so you'd expect the announcement to have been made in late april or early may. However, now we already have the end of may.
So either they are extremely disorganised and needed a month to rediscover the SQL queries they had just used before - or the "string of subpoenas" in fact "subsided" only very recently and not in april.