Yes, but hot dog stands are not the kind of things that we're talking about in this context. High tech, high risk start ups typically do not walk in to their bank managers office to get a few tens of thousands up to 100K loan to start their business, they're lucky enough to get an appointment in the first place.
Banks like to borrow where there is collateral, a typical tech start up will invest in people and a little bit of hardware. Typically that hardware will be worth 0 if the company should fold. A hot dog stand can at least be sold to the next guy that wants to try his luck.
Angels not investing in hot dog stands prove my point, they don't detract from it.
Banks will gain if they get more business because of this, since angels do not invest in to that kind of business the banks already have it, and the kind of investment that angels do will not be touched by banks.
Do you personally know of a high tech business that got its first capital from a bank ? Do you know of a high tech business that got its first capital from an angle or more than one angel investor ?
For me the score is exactly 0 for the first and 20+ for the second. (where I know one or more of the founders personally)