They're short cuts you might take to get a product out and get early feedback, the same sort of shortcuts most of us have taken when pushed to release something sooner. This is a product in Beta, not the finish article.
Even if everything work in theory just dropping multi-browser testing would save time. If their aim is a beta product for early user testing, I really don't think what they've done is unreasonable.
They're short cuts you might take to get a product out and get early feedback, the same sort of shortcuts most of us have taken when pushed to release something sooner. This is a product in Beta, not the finish article.
Even if everything work in theory just dropping multi-browser testing would save time. If their aim is a beta product for early user testing, I really don't think what they've done is unreasonable.