This is proof that the news media is just parroting what they are told. The bomb was not made of "concentrated hydrogen peroxide". That is one component used to make the actual explosive. Now I can understand the father getting it wrong, but all the news stories just quote him, without correcting the record. It would only take an extra sentence. But it's easier to just cut and paste from earlier stories and wire reports, rather than actually doing some journalism 101 type stuff.
You forgot to factor in the dumbing down of journalism factor. I daresay the cut and paste is journalism 101; the do-some-research method you seek is now a graduate course.
concentrated hydrogen peroxide is not a common household disinfectant. "Common" H2O2 is a 3% solution. IIRC, hair salons use about 30-35% solution. Neither is "concentrated".
Liquid rocket fuel oxidizer, OTOH...
The Hydrogen Peroxide is the same product used as antiseptic, but in space and rockets it is used at 80% to 98% strength, I use it at 90% and I produce my own peroxide.
The Hydrogen Peroxide is the only product used in the reaction, this places it in the monopropellant liquid rocket fuel classification.
The Hydrogen Peroxide contrary to many false information I read in the web, is a clear liquid, non volatile, non explosive, non inflammable and non toxic product that looks like water but with a great amount of oxygen, that´s why in many languages it´s name is "oxygenated water", ...
note: This is info I cut & pasted; the "I" above is not me; I'm just posting it.