The issue about verification still remains. We have no way of knowing if these haven't been tampered with as well. If a malicious actor is tampering with ISOs on a large scale, they will make sure their tampered copies have the most seeds and their fake checksum lists will be at the top of search results.
find a friend with MSDN access (or whatever it's called this week), the digests are all in there
(they used to be public)
The images(wim/esd format) are downloaded from Microsoft servers. There is no tampering.