I really do not see anything curious about the timing. The Palestinians fired mortars/rockets at Israel, as they usually do, and the IDF killed several of the perpetrators as the IDF usually does. Seemingly, both the Palestinians and IDF are active 24/7/365 so there is nothing curious about the situation. It is simply the same snafu on the part of the Palestinians.
Netanyahu condemns West Bank arson attack, calling it 'terror' (Haaretz)
from the article: IDF strikes kill at least three Hamas militants in Gaza Strip