Its about gradual escalation.
israel has made it clear they are now going against the terrorist leaders and backers (rather than just the foot soldiers and their families…). They have also made it abundantly clear that they don’t care who is around those terrorists. That is horrible (blowing up pagers in a grocery store) and “effective” (murdering anyone who meets with them).
If iran continues to play proxy war games? Then those strikes will move into iranian territory in the same way they strikes moved into lebanese territory.
https://en.wikipedia.org/wiki/Whataboutism