This is indeed a good sign - but I'll be a little skeptical here.
Good because it makes things easier for startups. Plus, banks do bring in a lot of expertise in fund raising from abroad entities (regulations / taxations etc) that will really help.
The bad news is that these funding will be done (or rather, influenced) by third party entities / bank agencies and will lead to favoritism and the usual malpractices associated with money.
Startups are going mainstream and these are welcome signs - but I hope banks aren't doing it just for the heck of it (and chicken out after 3 months once the startup buzz goes down).