It looks like the article was updated since I last read it, with the headline changed and a lot more information added, so maybe my claim is not true anymore. But I will tell you what bothered me about it initially anyways.

"whoever did it, it must be clear: That this was not an attack on the Lebanese state."

"Whoever did this did a surgical strike against the Hamas leadership," Regev said in the interview.

Those lines are heavily speculative commententary rather than "facts", aiming to downplay how much of an escalation this is. Those lines are found very high up in the 5th paragraph. It's the first commentary after saying that Israel refused to comment, and originally there was much less details presented.

Moreover, the article's headline (now changed) was something along the lines of "deputy Hamas chief killed in Beirut by blast". This verbiage has now been changed to "Israeli drone kills deputy Hamas chief", which is much better. The original is downplaying Israel's role.