Ethereum and Solidity absolutely bear some of the blame for bad software if the software is only bad because the tooling is garbage. You can't just kick the can down the road, runtime and compiler authors have a responsibility to actually do a good job. PHP cost people tons of time and money in the bad old days and again, you can't just blame people for using PHP. You have to fix it.

At the end of the day of course, the biggest error was on the part of the app developer, #1 because they used a bad platform, #2 because they didn't QA enough to compensate for the platform being bad.

But it still comes down to the fact that Ethereum and Solidity are low quality and the low quality results in more bugs and lost money than we'd see otherwise. It's just like the bad old days of Windows XP (and the modern days of Cryptolockers) except now money is directly vanishing into the ether because bad software is controlling it.