Concerns don't mean it's a problem, just that it was identified as a possible problem. Did this study bear these concerns out? From the article, right between two of the paragraphs you copied:

Sun-Ways has tackled these issues by building more resistant panels than what would be installed on rooftops, fitted with an anti-reflection filter.

Also, yes, install them on houses. We can do both. We should keep putting them just about everywhere they work until there is no added benefit or there is no more fossil fuel being used for electricity.