Given that .net was a TLD long before the framework came out, it was a stupid thing to name it. Caused confusion and the inability to Google things right away.
That's sort of the problem. It's easy to Google S3 since it's a distinct (if obnoxiously short) term. Blob is already an overloaded term.
An example of a great name from Microsoft is Excel, it's relatively short but meaningless so if you Google "Excel Sum" you'll get wonderful results... "Blob Get" is going to get you a lot of random stuff.
Edit: the top result for blob get is accurate on Google but you'll also quickly see this result from that site we all hate:
Need help! How do I get the blob fish, basking shark and dwarf whale?
It was pretty smart marketing move. Business people hear 'dot net' and nod wisely. Tech people hear 'dot net' and scrunch their faces. Either way people keep talking about Microsoft Java.