It does use a lot of "hence" and "therefore"s, but these are just generic connectors in proofs, and I don't recall any omission of crucial steps. If you have an example I'd be glad to go through it with you.
[Not directed at me, but] I really like Blundell's writing style: the text is clear and engaging, and the derivations elegant. The book is divided into many short chapters, each of which covers only a few key concepts, so I never felt overwhelmed. The problems are interesting and helpful for...