Note:
I swapped the original article at the request of a mod to from a source deemed more reliable, but to avoid confusion when reading the comment section prior to this edit, here is the link to the original article. I chose the Relief Web source listed by some who commented. Cheers!
This opinion makes no sense to me. The US Army was also formed during a terrorist action, so was the Russian red army. We wouldn’t have called the Russian red army in WW2 a terrorist organization, and we certainly wouldn’t call the US military a terrorist organization. We could call them cruel or bad or whatever based on personal opinions, but we wouldn’t call them terrorist organizations.
For a more extreme example, the Nazi military was far far worse than Hamas or the IDF and I still would call them a professional military. They were still state sanctioned, trained to a specific common standard, paid a wage, internationally recognized as a military force, etc. etc.